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Updated Live on: 21/08/2026 21:05 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
Clear

Currently 15.6°C, Max: 20.9°C, Min: 10.9°C 15.6°C Colder 0.9°C than last hour

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Feels like:  16°C

24-hr Difference
-0.3°CColder 0.3°C than yesterday at this time
Records Today Yesterday
Highs: 20.9°C
14:46
21.9°C
11:38
Lows: 10.9°C
06:16
13.5°C
23:54
 Calm NE
0.0

Gusting: 0.0 mph
0 Bft - Calm
Max Today: 8.5 at 12:23
Gust Month: 14.1 mph on Aug 4
Rain Today: 0.0 mm
Rate (mm/hr): 0.0 mm
Yesterday: 0.1 mm
August: 6.1 mm
Rain this Year: 522.7 mm
2 rain days this August
Last Rain: 20/08/2026 at 15:44
Tonight
Partly Cloudy
Partly Cloudy
10°C
Barometer Humidity / Dew Point Moon
Current: 1016.0 mb Rising 1 °C/hr
1-Hour Trend: Rising
3-Hour Trend: Rising rapidly
High: 1016.0  | Low: 1009.0
Humidity: 60 % Increased 5% since last hour
Humidex: 16.0°C
Dew Point: 7.9°C Increased 0.3°C since last hour
Wet Bulb: 11.7°C
Waxing Gibbous
Waxing Gibbous, Moon at 8 days in cycle
66%
Illuminated
UVI Forecast Solar Information
21/08/2026   Medium   4.6   
22/08/2026   Medium   4.4   
23/08/2026   Medium   4.6   
Sunrise is at: 06:01
Solar Noon at: 13:08
Sunset is at: 20:14
Wind Chill Heating Degree Days Sun
Current: 15.6°C
Today: 10.9°C  at 06:16
Yesterday: 13.1°C
Last Week: 13.2°C
Record: -13.3°C   01/03/2018
Today: 3.8
August: 7.1
2026 to Date: 1388.4
Cooling Degree Days
2026 to Date: 230.3
Daylight: 14:13:00
-00:03:35
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 06:01
Sunset is at: 20:14
Moonrise is at: 16:41
Moonset is at: 23:23
Cloud Height: 3295 ft
Fri 21 August
High Tide: 0534 3.7
Low Tide: 1103 2.1
High Tide: 1802 3.8
Air Density: 1.221 kg/m3
New Moon: 12 August 2026
Full Moon: 28 August 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 23.1°C
Sys Check: 00:20
Sys Reset: 7 Days 7 Hours 33 Minutes 44 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:
8.9 at 21:05


Tomorrow's and Tomorrow night's Outlook for the Southampton Area
Tomorrow
Mostly Sunny
Mostly Sunny
23°C
Generally sunny despite a few afternoon clouds. High 23C. Winds NNE at 5 to 10 mph.
Tomorrow night
Partly Cloudy
Partly Cloudy
10°C
Partly cloudy. Low near 10C. Winds light and variable.
Short Term Weather Forecast for the Southampton Area
Tomorrow night
Partly Cloudy
Partly Cloudy
10°C
Sunday
Partly Cloudy
Partly Cloudy
23°C
Sunday night
Mostly Clear
Mostly Clear
13°C
Monday
Partly Cloudy
Partly Cloudy
24°C
Monday night
Cloudy
Cloudy
15°C
Tuesday
Partly Cloudy
Partly Cloudy
24°C