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Updated Live on: 31/05/2026 17:50 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
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Currently 20.8°C, Max: 22.5°C, Min: 12.9°C 20.8°C Colder 0.1°C than last hour

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Feels like:  21°C

24-hr Difference
-4.7°CColder 4.7°C than yesterday at this time
Records Today Yesterday
Highs: 22.5°C
16:08
27.4°C
15:13
Lows: 12.9°C
04:48
11.2°C
05:00
 Wind from E E
2.9

Gusting: 4.0 mph
2 Bft - Light Air
Max Today: 11.7 at 13:41
Gust Month: 19.9 mph on May 19
Rain Today: 0.0 mm
Rate (mm/hr): 0.0 mm
Yesterday: 0.0 mm
May: 30.4 mm
Rain this Year: 435.3 mm
12 rain days this May
Last Rain: 28/05/2026 at 19:18
Tonight
Partly Cloudy
Partly Cloudy
11°C
Barometer Humidity / Dew Point Moon
Current: 1016.0 mb  
1-Hour Trend: Steady
3-Hour Trend: Steady
High: 1017.0  | Low: 1015.0
Humidity: 47 % Increased 3% since last hour
Humidex: 21.7°C
Dew Point: 9.1°C Increased 0.8°C since last hour
Wet Bulb: 14.5°C
Full Moon
Full Moon, Moon at 15 days in cycle
100%
Illuminated
UVI Forecast Solar Information
31/05/2026   High   6.0   
01/06/2026   High   6.3   
02/06/2026   Medium   5.2   
Sunrise is at: 04:57
Solar Noon at: 13:03
Sunset is at: 21:09
Heat Index Cooling Degree Days Sun
Current: 20.8°C
Today: 22.5°C at 16:08
Yesterday: 26.9°C
Last Week: 34.1°C
Record: 34.2°C   19/07/2022
Today: 0.0
May: 33.0
2026 to Date: 33.0
Heating Degree Days
2026 to Date: 1316.4
Daylight: 16:12:00
+ 00:01:56
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 04:57
Sunset is at: 21:09
Moonrise is at: 22:07
Moonset is at: 04:10
Cloud Height: 4938 ft
Sun 31 May
Low Tide: 0526 1.1
High Tide: 1139 4.3
Low Tide: 1743 1.3
High Tide: 2351 4.4
Air Density: 1.199 kg/m3
New Moon: 16 May 2026
Full Moon: 31 May 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 24.5°C
Sys Check: 00:20
Sys Reset: 7 Days 9 Hours 37 Minutes 46 Seconds
Highs: Lows:
35.2°C on:
19/07/2022
-8.2°C on:
10/01/2009
Avg Daytime Records
  29.2°C on: 19 Jul 2022   -4.0°C on: 01 Mar 2018
Avg Night Time Records
  24.8°C on: 20 Jul 2016   -6.1°C on: 10 Jan 2009
Soton & New Forest Fire Index
Currently:
22.8 at 17:50


Tomorrow's and Tomorrow night's Outlook for the Southampton Area
Tomorrow
PM Rain
PM Rain
19°C
Cloudy skies with periods of rain later in the day. High 19C. Winds SW at 10 to 20 mph. Chance of rain 80%.
Tomorrow night
Rain
Rain
14°C
Periods of rain. Low 14C. Winds SSW at 10 to 15 mph. Chance of rain 100%. Rainfall near 12mm. Flooding possible in poor drainage areas.
Short Term Weather Forecast for the Southampton Area
Tomorrow night
Rain
Rain
14°C
Tuesday
Thunderstorms
Thunderstorms
18°C
Tuesday night
Mostly Clear
Mostly Clear
12°C
Wednesday
Light Rain, Wind
Light Rain, Wind
16°C
Wednesday night
Showers
Showers
12°C
Thursday
Showers
Showers
17°C