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Updated Live on: 20/09/2026 22:20 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
Clear

Currently 12.8°C, Max: 20.9°C, Min: 12.8°C 12.8°C Colder 0.6°C than last hour

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Feels like:  13°C

24-hr Difference
-3.9°CColder 3.9°C than yesterday at this time
Records Today Yesterday
Highs: 20.9°C
13:38
19.9°C
12:28
Lows: 12.8°C
22:12
14.7°C
06:48
 Calm NE
0.0

Gusting: 0.0 mph
0 Bft - Calm
Max Today: 10.0 at 11:49
Gust Month: 18.9 mph on Sep 4
Rain Today: 0.9 mm
Last Rain at: 02:18
Rate (mm/hr): 0.0 mm
Yesterday: 0.0 mm
September: 32.9 mm
Rain this Year: 573.7 mm
9 rain days this September
Tonight
Partly Cloudy
Partly Cloudy
9°C
Barometer Humidity / Dew Point Moon
Current: 1031.0 mb  
1-Hour Trend: Steady
3-Hour Trend: Rising
High: 1031.0  | Low: 1019.0
Humidity: 72 % Increased 2% since last hour
Humidex: 13.2°C
Dew Point: 7.9°C Decreased 0.2°C since last hour
Wet Bulb: 10.4°C
Waxing Gibbous
Waxing Gibbous, Moon at 9 days in cycle
69%
Illuminated
UVI Forecast Solar Information
20/09/2026   Medium   3.6   
21/09/2026   Medium   3.7   
22/09/2026   Medium   3.6   
Sunrise is at: 06:48
Solar Noon at: 12:59
Sunset is at: 19:08
Wind Chill Heating Degree Days Sun
Current: 12.8°C
Today: 12.8°C  at 22:12
Yesterday: 13.5°C
Last Week: 9.4°C
Record: -13.3°C   01/03/2018
Today: 2.5
September: 47.0
2026 to Date: 1447.4
Cooling Degree Days
2026 to Date: 235.1
Daylight: 12:20:00
-00:03:49
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 06:48
Sunset is at: 19:08
Moonrise is at: 16:53
Moonset is at: 00:16
Cloud Height: 2134 ft
Sun 20 September
High Tide: 0558 3.7
Low Tide: 1318 2.5
High Tide: 1826 3.6
Air Density: 1.251 kg/m3
New Moon: 11 September 2026
Full Moon: 26 September 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 21.3°C
Sys Check: 00:20
Sys Reset: 9 Days 8 Hours 51 Minutes 25 Seconds
Highs: Lows:
35.5°C on:
25/06/2026
-8.2°C on:
10/01/2009
Avg Daytime Records
  30.8°C on: 25 Jun 2026   -4.0°C on: 01 Mar 2018
Avg Night Time Records
  26.8°C on: 26 Jun 2026   -6.1°C on: 10 Jan 2009
Soton & New Forest Fire Index
Currently:
2.5 at 22:20


Tomorrow's and Tomorrow night's Outlook for the Southampton Area
Tomorrow
Partly Cloudy
Partly Cloudy
23°C
Partly cloudy skies. High 23C. Winds light and variable.
Tomorrow night
Mostly Clear
Mostly Clear
13°C
Mostly clear. Low 13C. Winds light and variable.
Short Term Weather Forecast for the Southampton Area
Tomorrow night
Mostly Clear
Mostly Clear
13°C
Tuesday
Partly Cloudy
Partly Cloudy
23°C
Tuesday night
Partly Cloudy
Partly Cloudy
13°C
Wednesday
Partly Cloudy
Partly Cloudy
23°C
Wednesday night
Mostly Clear
Mostly Clear
9°C
Thursday
Partly Cloudy
Partly Cloudy
21°C