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Updated Live on: 20/05/2026 22:55 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
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Currently 12.8°C, Max: 19.8°C, Min: 11.0°C 12.8°C Colder 0.7°C than last hour

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Feels like:  13°C

24-hr Difference
0.3°CWarmer 0.3°C than yesterday at this time
Records Today Yesterday
Highs: 19.8°C
10:45
18.2°C
10:42
Lows: 11.0°C
05:22
10.4°C
03:18
 Wind from SE SE
1.4

Gusting: 2.1 mph
1 Bft - Light Air
Max Today: 18.5 at 12:18
Gust Month: 19.8 mph on May 19
Rain Today: 0.1 mm
Last Rain at: 02:03
Rate (mm/hr): 0.0 mm
Yesterday: 7.9 mm
May: 30.0 mm
Rain this Year: 434.9 mm
11 rain days this May
Tonight
Partly Cloudy
Partly Cloudy
11°C
Barometer Humidity / Dew Point Moon
Current: 1025.0 mb Rising 1 °C/hr
1-Hour Trend: Rising
3-Hour Trend: Rising
High: 1025.0  | Low: 1011.0
Humidity: 84 % Increased 2% since last hour
Humidex: 14.2°C
Dew Point: 10.2°C Decreased 0.3°C since last hour
Wet Bulb: 11.4°C
Waxing Crescent
Waxing Crescent, Moon at 4 days in cycle
23%
Illuminated
UVI Forecast Solar Information
20/05/2026   High   6.0   
21/05/2026   High   6.3   
22/05/2026   High   6.3   
Sunrise is at: 05:09
Solar Noon at: 13:02
Sunset is at: 20:55
Wind Chill Heating Degree Days Sun
Current: 13.5°C
Today: 9.7°C  at 04:40
Yesterday: 7.6°C
Last Week: 3.2°C
Record: -13.3°C   01/03/2018
Today: 4.5
May: 121.7
2026 to Date: 1313.9
Cooling Degree Days
2026 to Date: 0.0
Daylight: 15:46:00
+ 00:02:40
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 05:09
Sunset is at: 20:55
Moonrise is at: 08:13
Moonset is at: 00:33
Cloud Height: 1192 ft
Wed 20 May
High Tide: 0131 4.6
Low Tide: 0749 0.8
High Tide: 1415 4.5
Low Tide: 2015 1.1
Air Density: 1.243 kg/m3
New Moon: 16 May 2026
Full Moon: 31 May 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 19.9°C
Sys Check: 00:20
Sys Reset: 5 Days 10 Hours 37 Minutes 23 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:
-0.5 at 22:55


Tomorrow's and Tomorrow night's Outlook for the Southampton Area
Tomorrow
AM Clouds, PM Sun
AM Clouds, PM Sun
22°C
Cloudy skies early, then partly cloudy in the afternoon. Warmer and more humid. High 22C. Winds SSW at 5 to 10 mph.
Tomorrow night
Partly Cloudy
Partly Cloudy
13°C
Some clouds early will give way to generally clear conditions overnight. Humid. Low 13C. Winds SE at 5 to 10 mph.
Short Term Weather Forecast for the Southampton Area
Tomorrow night
Partly Cloudy
Partly Cloudy
13°C
Friday
Partly Cloudy
Partly Cloudy
25°C
Friday night
Partly Cloudy
Partly Cloudy
14°C
Saturday
Partly Cloudy
Partly Cloudy
28°C
Saturday night
Mostly Clear
Mostly Clear
15°C
Sunday
Sunny
Sunny
29°C