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Weather warnings may have been issued

Heathrow (nearest observation site to R.H.S. Garden Wisley)

Wednesday (Wednesday 17 January 2018)
06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny intervals Cloudy Cloudy Sunny day Clear night Partly cloudy night Cloudy Overcast Overcast Light shower night Light rain
Temperature (°C)
2.8 ° 3.3 ° 3.8 ° 4.1 ° 5.1 ° 6.2 ° -5.2 ° -5.2 ° -5.2 ° 7.4 ° 6.9 ° 6.0 ° 5.6 ° 5.7 ° 5.6 ° 5.8 ° 5.8 ° 6.1 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
W 21 29 W 22 34 W 17 30 W 21 30 W 21 33 W 22 36 W 21 32 W 22 36 W 24 36 W 17 37 W 16 30 WSW 13 WSW 13 SW 13 SW 13 SSW 16 SSW 14 SSW 15
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG VG VG G G G G VG VG VG VG VG G G G G M
Humidity Expand
71% 71% 68% 70% 65% 61% 52% 99% 99% 55% 58% 66% 70% 73% 74% 74% 83% 90%
Pressure (hPa) Expand
1001 1003 1004 1006 1007 1008 1008 1009 1009 1009 1009 1009 1008 1006 1004 1001
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
R R R R R R R R R R R R F F F F F F
Sunrise: 07:59 Sunset: 16:26 Moon phase: New
Thursday (Thursday 18 January 2018)
00:00 01:00 02:00 03:00 04:00 05:00 06:00
Drizzle Drizzle Light shower night Overcast Overcast Overcast Cloudy
Temperature (°C)
7.3 ° 9.1 ° 10.2 ° 11.3 ° 11.6 ° 10.6 ° 9.9 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
SSW 24 37 SW 25 36 WSW 26 41 WSW 32 51 W 41 63 W 32 61 W 30 53
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M G M VG G M VG
Humidity Expand
93% 94% 90% 75% 65% 65% 57%
Pressure (hPa) Expand
998 995 993 992 992 993 995
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
F F F F F F
Sunrise: 07:58 Sunset: 16:27 Moon phase: New

– = No Data

Issued at:

Extremes

London & South East England extremes

Parameter Location Value
Highest maximum temperature Shoreham 8.5 °C
Lowest maximum temperature Stowe 6.0 °C
Lowest minimum temperature High Wycombe -0.5 °C
Highest rainfall Alice Holt Lodge 1.0 mm
Sunniest Brize Norton 6.0 hours

UK extremes

Parameter Location Value
Highest maximum temperature Scilly St Marys 10.8 °C
Lowest maximum temperature Carterhouse 0.8 °C
Lowest minimum temperature Drumnadrochit -5.0 °C
Highest rainfall Glenanne 20.6 mm
Sunniest Wattisham 6.5 hours

About extremes

Highest maximum temperature - (0900 to 2100 on the date shown)

Lowest maximum temperature - (0900 to 2100 on the date shown)

Lowest minimum temperature - (2100 on the previous day to 0900 on the date shown)

Highest rainfall -(2100 on the previous day to 2100 on the date shown)

Sunniest - (2100 on the previous day to 2100 on the date shown)

The information shown is initial data as it is received; observations are subject to final quality control after publication on this website. This is particularly the case for rainfall totals during snow events.

Issued at:

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