Decoded British Isles SYNOP weather reports

Weather data for 2023Mar31-21Z 
Year Mon Da ZZ Site  N dd ff VV  temp  dewp   mslp  ptendency ww WW  Rain H  maxT  minT  Tg sss* GG GGh ffu
2023 Mar 31 21 03002 8 07 02 83   5.8   4.7 1006.1  +1.7 R                                       03 10m kn  AWS Baltasound
2023 Mar 31 21 03005 8 08 03 80   5.1   3.5 1005.7  +1.7 R                                       04 10m kn  AWS Lerwick
2023 Mar 31 21 03008 8 12 10 83   5.6   2.1 1004.8  +1.9 R                                       16 10m kn  AWS Fair Isle
2023 Mar 31 21 03017 8 12 11 83   5.4   2.5 1004.0  +2.1 R                                       16 10m kn  AWS Kirkwall
2023 Mar 31 21 03023 8 09 02 84   9.4   7.7  999.3  +1.9 R                                       03 WW  kn  AWS South Uist Range
2023 Mar 31 21 03026 8 12 15 80   8.4   6.1 1000.0  +2.3 R                                       21 10m kn  AWS Stornoway
2023 Mar 31 21 03031 8 09 09 82   5.8   4.2 1002.2  +2.5 R                                       13 10m kn  AWS Loch Glascarnoch
2023 Mar 31 21 03034 8 14 04 83   9.4   5.4 1000.5  +2.7 R                                       11 WW  kn  AWS Aultbea
2023 Mar 31 21 03039 / 11 09 //   3.4   3.2                   // //                                     kn  AWS Bealach No Ba
2023 Mar 31 21 03041                                          // //                                     kn  AWS Aonach Moor
2023 Mar 31 21 03044 8 12 04 84   6.5   3.8 1002.6  +2.5 R                                       09 10m kn  AWS Altnaharra
2023 Mar 31 21 03047 8 19 06 86   7.9   5.2 1001.3  +2.7 R                                       09 10m kn  AWS Tulloch Bridge
2023 Mar 31 21 03062 8 10 14 68   6.1   4.8 1002.7  +2.5 R                                       18 10m kn  AWS Tain Range
2023 Mar 31 21 03063 6 36 03 89   5.1   2.2 1001.7  +2.4 R                                       07 10m kn  AWS Aviemore
2023 Mar 31 21 03065                                          // //                                     kn  AWS Cairngorm
2023 Mar 31 21 03066 8 09 10 84   6.1   4.5 1002.7  +2.7 R                                       14 10m kn  AWS Kinloss
2023 Mar 31 21 03068 8 10 11 73   5.9   3.8 1003.1  +2.7 R                                       15 10m kn  AWS Lossiemouth
2023 Mar 31 21 03072 / // // //  -0.5  -0.5                   // //                                     kn  AWS Cairnwell
2023 Mar 31 21 03075 8 13 11 71   5.7   2.8 1003.7  +2.2 R                                       19 WW  kn  AWS Wick
2023 Mar 31 21 03080 8 10 04 25   4.4   4.0 1002.8  +2.6 R    50 //                              10 WW  kn  AWS Aboyne
2023 Mar 31 21 03088 8 07 15 58   4.1   4.1 1002.4  +2.6 R    51 //                              19 10m kn  AWS Inverbervie
2023 Mar 31 21 03091 8 08 06 80   4.4   3.6 1003.2  +2.6 R    61 //                              12 10m kn  AWS Aberdeen Dyce
2023 Mar 31 21 03100 8 15 04 58   9.5   8.4 1000.1  +2.3 R    61 //                              06 10m kn  AWS Tiree
2023 Mar 31 21 03105 8 09 17 85   9.1   6.4  999.5  +2.7 R                                       23 10m kn  AWS Port Ellen
2023 Mar 31 21 03111 8 09 07 89   8.9   6.5  999.6  +3.0 nowS                                    15 WW  kn  AWS Machrihanish
2023 Mar 31 21 03132 8 15 05 76   8.8   8.0  999.3  +3.1 R    23 //                              06 10m kn  AWS West Freugh
2023 Mar 31 21 03134 8 09 09 80   7.2   4.9 1001.4  +3.2 nowS                                    14 10m kn  AWS Glasgow Bishopton
2023 Mar 31 21 03136 8 04 07 89   7.9   5.2 1000.5  +3.5 nowS                                    12 10m kn  AWS Prestwick
2023 Mar 31 21 03144 8 07 05 81   6.1   5.3 1002.2  +2.7 nowS 22 //                              09 10m kn  AWS Strathallan
2023 Mar 31 21 03153 5 04 08 85   7.1   5.6  999.2  +3.5 nowS                                    11 10m kn  AWS Dundrennan
2023 Mar 31 21 03155 8 08 14 69   5.3   4.6 1000.7  +2.5 nowS // //                              19 WW  kn  AWS Drumalbin
2023 Mar 31 21 03162 8 03 11 56   5.3   4.6 1000.6  +2.9 nowS 51 //                              14 10m kn  AWS Eskdalemuir
2023 Mar 31 21 03166 8 07 09 68   6.0   5.3 1001.6  +2.7 R    22 //                              14 10m kn  AWS Edinburgh Gogarbank
2023 Mar 31 21 03171 8 07 07 56   6.0   5.1 1002.1  +2.7 R    50 //                              12 10m kn  AWS Leuchars
2023 Mar 31 21 03204 8 06 11 //   9.9   6.8  998.7  +3.2 R    // //                              16 10m kn  AWS Ronaldsway
2023 Mar 31 21 03210 8 05 15 83   7.3   5.8  999.0  +3.4 nowS // //                              20 WW  kn  AWS St Bees Head
2023 Mar 31 21 03212 8 06 06 89   8.0   5.7  999.4  +3.5 R                                       16 WW  kn  AWS Keswick
2023 Mar 31 21 03214 8 04 05 89   9.2   6.6  998.3  +3.7 R                                       07 10m kn  AWS Walney Island
2023 Mar 31 21 03220 8 // // 89   8.0   5.3  999.8  +3.3 R    // //                                     kn  AWS Carlisle
2023 Mar 31 21 03224 8 05 09 87   4.9   4.6  999.9  +3.1 R                                       17 WW  kn  AWS Spadeadam
2023 Mar 31 21 03225 7 35 06 89   5.5   4.5  999.0  +3.2 R    // //                              09 10m kn  AWS Shap Fell
2023 Mar 31 21 03226 8 33 07 89   6.5   4.2  998.7  +3.3 nowR                                    16 WW  kn  AWS Warcop Range
2023 Mar 31 21 03227 / // // //   1.9                         // //                                     kn  AWS Great Dun Fell
2023 Mar 31 21 03316 8 04 08 58   9.5   7.9  997.9  +3.7 nowR 61 //                              11 WW  kn  AWS Crosby
2023 Mar 31 21 03318 / 05 09 //   9.8   7.1                   // //                                     kn  AWS Blackpool
2023 Mar 31 21 03230 8 02 09 87   5.3   4.2 1000.5  +3.2 nowS // //                              13 WW  kn  AWS Redesdale
2023 Mar 31 21 03238 8 03 08 69   5.4   4.9  999.4  +3.2 R    50 //                              15 WW  kn  AWS Albermarle
2023 Mar 31 21 03240 8 03 10 63   6.0   5.6 1000.3  +3.0 R    22 //                              15 10m kn  AWS Boulmer
2023 Mar 31 21 03257 8 36 11 //   6.9   6.3  998.3  +3.6 R    57 //                              17 10m kn  AWS Leeming
2023 Mar 31 21 03265 8 36 11 39   7.3   6.4  998.0  +3.7 nowR 10 //                              19 WW  kn  AWS Topcliffe
2023 Mar 31 21 03275 8 04 13 09   5.6   5.6  997.9  +3.3 R    51 //                              19 WW  kn  AWS Loftus
2023 Mar 31 21 03281 / 03 14 //   5.1   5.1                   // //                                     kn  AWS Fylingdales
2023 Mar 31 21 03292 8 01 14 //   7.0   6.6  995.7  +3.6 R    // //                              22 WW  kn  AWS Bridlington
2023 Mar 31 21 03344 8 36 09 58   6.2   5.8  997.9  +3.5 R    51 //                              17 WW  kn  AWS Bingley
2023 Mar 31 21 03346 / 36 13 //   6.4   5.9                   // //                                     kn  AWS Emley Moor No.2
2023 Mar 31 21 03377 8 36 13 68   7.9   7.3  995.2  +3.7 R    51 //                              18 10m kn  AWS Waddington
2023 Mar 31 21 03379 8 34 14 73   8.2   7.4  995.1  +3.8 R    // //                              18 WW  kn  AWS Cranwell
2023 Mar 31 21 03382 8 01 10 26   7.1   6.8  995.9  +3.8 R    61 //                              14 10m kn  AWS Leconfield
2023 Mar 31 21 03385 8 35 20 36   7.8   7.5  994.6  +3.9 R    57 //                              24 10m kn  AWS Donna Nook
2023 Mar 31 21 03391 8 36 13 60   8.6   7.8  994.5  +3.8 R                                       18 10m kn  AWS Coningsby
2023 Mar 31 21 03392 / 35 14 56   8.0   7.7  993.8  +3.8 R    // //                              20 10m kn  AWS Wainfleet
2023 Mar 31 21 03302 8 29 03 50   9.8   8.7  998.5  +3.0 R    61 //                              04 10m kn  AWS Valley
2023 Mar 31 21 03301 8 30 04 43   9.2   8.9  998.7  +3.0 R    61 //                              06 10m kn  AWS Raf Mona
2023 Mar 31 21 03305 8 36 02 89   8.7   7.7  998.7  +3.1 R    23 //                              05 WW  kn  AWS Capel Curig
2023 Mar 31 21 03313 8 31 07 19   8.8   8.5  998.4  +3.4 R    // //                              12 WW  kn  AWS Rhyl
2023 Mar 31 21 03321 8 32 05 64   9.8   8.9  997.9  +3.6 R    61 //                              08 10m kn  AWS Hawarden
2023 Mar 31 21 03405 8 30 10 08   8.7   8.2  999.5  +2.8 R    // //                              13 10m kn  AWS Aberdaron
2023 Mar 31 21 03409 / 25 02 //   8.9   8.0  998.1  +3.2 R    // //                              07 WW  kn  AWS Bala
2023 Mar 31 21 03410 6 32 03 83   7.6   6.5  997.9  +3.3 R    // //                              07 10m kn  AWS Lake Vrynwy
2023 Mar 31 21 03502 8 27 20 60   8.9   8.9  999.2  +2.6 R    40 //                              26 10m kn  AWS Aberporth
2023 Mar 31 21 03503 8 30 05 21   9.1   8.8  998.8  +2.9 nowS 60 //                              10 WW  kn  AWS Trawscoed
2023 Mar 31 21 03507 8 30 02 39   8.1   7.6  998.9  +3.0 R    60 //                              06 WW  kn  AWS Sennybridge
2023 Mar 31 21 03604 8 29 12 76   9.6   8.9 1000.3  +2.8 R    // //                              22 WW  kn  AWS Milford Haven
2023 Mar 31 21 03605 8 29 19 83  10.4   8.9  999.8  +3.0 R    // //                              23 10m kn  AWS Pembrey Sands
2023 Mar 31 21 03609 / 26 13 //   9.8   9.2 1000.0  +2.9 R    // //                              22 10m kn  AWS Mumbles
2023 Mar 31 21 03716 8 28 15 60   9.5   8.8  999.1  +3.0 R    21 //                              22 10m kn  AWS St Athan
2023 Mar 31 21 03330 8 35 06 65   7.8   6.8  996.8  +3.6 R    61 //                              13 WW  kn  AWS Leek Thorncliffe
2023 Mar 31 21 03354 8 01 10 50   8.6   7.8  996.1  +3.8 R    50 //                              16 10m kn  AWS Nottingham Wea Cen
2023 Mar 31 21 03414 8 31 07 50   9.8   9.0  997.4  +3.7 R    61 //                              10 10m kn  AWS Shawbury
2023 Mar 31 21 03520 8 30 07 84  10.0   7.3  997.5  +3.6 R    // //                              11 10m kn  AWS Shobdon
2023 Mar 31 21 03522 8 28 08 89   9.8   7.4  997.8  +3.5 R                                       13 10m kn  AWS Hereford Credenhill
2023 Mar 31 21 03529 8 30 07 50   9.9   9.5  997.1  +3.8 R    61 //                              12 10m kn  AWS Pershore
2023 Mar 31 21 03535 8 33 09 89   9.7   7.9  996.2  +3.9 nowR 23 //                              13 10m kn  AWS Coleshill
2023 Mar 31 21 03544 8 34 08 74   9.4   8.2  995.8  +3.8 nowR 51 //                              13 10m kn  AWS Church Lawford
2023 Mar 31 21 03647 8 30 09 57   9.1   9.1  996.2  +3.6 nowR // //                              15 10m kn  AWS Little Rissington
2023 Mar 31 21 03649 8 28 09 58  10.1   9.2  996.3  +3.6 nowR 60 //                              14 10m kn  AWS Brize Norton
2023 Mar 31 21 03658 8 28 07 20  10.1   9.4  995.7  +3.4 R    63 //                              11 10m kn  AWS Benson
2023 Mar 31 21 03462 8 33 10 71   8.7   7.7  994.4  +3.8 R    61 //                              14 10m kn  AWS Wittering
2023 Mar 31 21 03469 8 35 14 33   8.6   8.2  993.8  +3.8 R    51 //                              19 10m kn  AWS Holbeach
2023 Mar 31 21 03482 8 33 11 58   8.5   8.0  993.1  +3.7 nowR 58 //                              18 WW  kn  AWS Marham
2023 Mar 31 21 03488 8 34 14 17   7.9   7.7  992.1  +3.5 R    53 //                              17 10m kn  AWS Weybourne
2023 Mar 31 21 03560 8 32 10 69   9.5   8.5  994.6  +3.9 nowR 23 //                              13 10m kn  AWS Bedford
2023 Mar 31 21 03590 8 31 12 70   8.6   7.8  992.3  +4.0 nowR 22 //                              18 10m kn  AWS Wattisham
2023 Mar 31 21 03684 8 32 09 67   9.3   8.1  993.1  +3.9 nowR                                    16 10m kn  AWS Andrewsfield
2023 Mar 31 21 03693 8 31 12 65  10.2   9.2  993.0  +3.6 R    23 //                              17 10m kn  AWS Shoeburyness
2023 Mar 31 21 03707 8 28 17 62  10.3   8.7 1001.0  +2.8 R    21 //                              24 10m kn  AWS Chivenor
2023 Mar 31 21 03710 8 30 19 50   7.7   7.5 1000.0  +2.8 R    // //                              29 10m kn  AWS Liscombe
2023 Mar 31 21 03803 8 27 20 61  10.5   8.9 1006.5  +2.7 R                                       32 WW  kn  AWS Scilly St Marys
2023 Mar 31 21 03808 8 28 17 62  10.2   8.3 1005.1  +2.9 nowR                                    26 10m kn  AWS Camborne
2023 Mar 31 21 03809 8 26 16 62  10.4   7.9 1005.0  +2.9 nowR                                    26 WW  kn  AWS Culdrose RNAS
2023 Mar 31 21 03823 8 29 17 61   8.9   7.9 1003.0  +2.9 R                                       26 10m kn  AWS Cardinham
2023 Mar 31 21 03827 8 28 19 67  10.4   7.8 1002.8  +2.7 R                                       31 WW  kn  AWS Plymouth
2023 Mar 31 21 03840 8 29 13 66   8.6   7.9 1000.1  +2.8 R    61 //                              26 WW  kn  AWS Dunkeswell
2023 Mar 31 21 03853 8 28 18 66  10.1   8.7  999.1  +3.0 R    61 //                              24 10m kn  AWS Yeovilton
2023 Mar 31 21 03672 8 29 07 76  10.4   9.6  994.8  +3.3 nowR 60 //                              13 WW  kn  AWS Northolt
2023 Mar 31 21 03740 8 // // //   9.0   8.8  997.6  +3.4 nowR // //                                     kn  AWS Lyneham
2023 Mar 31 21 03743 8 27 11 81   9.1   8.3  997.5  +3.1 nowR // //                              23 WW  kn  AWS Larkhill
2023 Mar 31 21 03746 8 29 16 80   9.1   8.4  997.4  +2.9 nowR 61 //                              25 WW  kn  AWS Boscombe Down
2023 Mar 31 21 03749 8 28 15 72   9.6   8.4  997.2  +3.0 nowR 61 //                              26 WW  kn  AWS Middle Wallop
2023 Mar 31 21 03761 8 26 16 59   9.6   8.7  996.0  +2.8 R    61 //                              20 10m kn  AWS Odiham
2023 Mar 31 21 03769 8 27 09 56   9.7   8.6  994.9  +2.6 R    61 //                              19 10m kn  AWS Charlwood
2023 Mar 31 21 03770 / // // //  10.6   9.9                   // //                                     kn  AWS St James Park
2023 Mar 31 21 03772 8 28 11 71  10.3   9.5  994.9  +3.2 nowR 61 //                              17 10m kn  AWS Heathrow
2023 Mar 31 21 03781 8 27 14 57   9.0   8.9  994.6  +2.7 R    63 //                              22 10m kn  AWS Kenley
2023 Mar 31 21 03796 / 26 14 //   9.3   8.2  992.9  +2.4 nowS // //                              23 10m kn  AWS Langdon Bay
2023 Mar 31 21 03797 8 28 14 80  10.0   9.5  992.6  +3.1 R    60 //                              22 10m kn  AWS Manston
2023 Mar 31 21 03857 8 28 24 56  10.0   7.9  999.5  +2.5 nowR 61 //                              35 WW  kn  AWS Isle of Portland
2023 Mar 31 21 03862 8 29 14 86  10.2   7.9  998.4  +2.6 R    22 //                              21 10m kn  AWS Bournemouth Hurn
2023 Mar 31 21 03866 / 27 18 //   9.7   7.4  997.8  +2.6 R    // //                              24 10m kn  AWS St Catherines Point
2023 Mar 31 21 03872 8 28 17 67  10.0   8.5  996.7  +2.6 R    61 //                              24 10m kn  AWS Thorney Island
2023 Mar 31 21 03876 / 27 15 //   9.8   8.9  995.9  +2.5 R    // //                              21 10m kn  AWS Shoreham
2023 Mar 31 21 03882 8 26 08 71   9.3   8.5  995.0  +2.6 R    61 //                              17 10m kn  AWS Herstmonceux
2023 Mar 31 21 03894 7 27 20 62  10.2   8.3 1004.1  +2.1 nowR 03 82                              31 WW  kn      Guernsey Airport
2023 Mar 31 21 03895                                          // //                                     kn  AWS Jersey Airport
2023 Mar 31 21 03901 8 30 04 57   9.2   9.0  999.6  +2.4 R    61 //                              06 10m kn  AWS Thomastown
2023 Mar 31 21 03904 8 27 04 57   9.2   8.8  999.7  +2.4 R    61 //                              07 WW  kn  AWS Castlederg
2023 Mar 31 21 03907 8 16 02 61   9.6   8.8  999.8  +2.8 R    61 //                              03 10m kn  AWS Magilligan
2023 Mar 31 21 03911 8 30 02 73   7.9   7.9  999.9  +2.8 nowS 61 //                              03 10m kn  AWS Lough Fea
2023 Mar 31 21 03915 8 04 02 63   9.1   8.3  999.2  +2.9 nowS 61 //                              03 10m kn  AWS Port Glenone
2023 Mar 31 21 03916 8 11 13 80   7.9   6.6 1000.0  +2.6 nowS                                    19 10m kn  AWS Ballypatrick Forest
2023 Mar 31 21 03917 8 00 00 74   9.1   8.5  999.5  +2.9 nowS 23 //                              01 10m kn  AWS Aldergrove
2023 Mar 31 21 03923 8 33 04 60   8.7   8.3  999.1  +2.7 R    61 //                              08 WW  kn  AWS Glennane
Year Mon Da ZZ Site  N dd ff VV  temp  dewp   mslp  ptendency ww WW  Rain H  maxT  minT  Tg sss* GG GGh ffu

AWS in place name - Automatic Weather Station (different ww codes)

Year - year
Mon - month
Da - day of month
ZZ - observation time (GMT)
Site - WMO site number
N - cloud cover (oktas, 9=obscured)
dd - wind direction (deg)
ff - wind speed (see ffu)
VV - visibility (code)
temp - air temperature (C)
dewp - dew point (C)
mslp - mean sea level pressure (mb)
ptendency - 3-hour pressure change (mb) and tendency
ww - current weather (code)
ww - current weather (AWS)(code)
WW - past weather (code)
Rain - total precipitation (mm)
H - 1: 6h precipitation measurement; 2: 12h precipitation measurement
maxT - maximum temperature (C)
minT - air minimum temperature (C)
Tg - grass minimum temperature (C)
sss - sunshine for the previous day (h)
GG - maximum wind gust
GGh - period of gust; 10minutes or W1W2 period
ffu - wind units; m/s or kn.

See here for summary details of the month so far.


This page is maintained by r.brugge@reading.ac.uk