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Updated Live on: 06/09/2026 10:40 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
Clear

Currently 20.4°C, Max: 20.5°C, Min: 12.7°C 20.4°C Warmer 2.1°C than last hour

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Feels like:  20°C

24-hr Difference
2.8°CWarmer 2.8°C than yesterday at this time
Records Today Yesterday
Highs: 20.5°C
10:29
21.7°C
15:39
Lows: 12.7°C
01:56
10.9°C
04:57
 Wind from W W
3.3

Gusting: 4.3 mph
2 Bft - Light Breeze
Max Today: 11.0 at 09:25
Gust Month: 18.8 mph on Sep 4
Rain Today: 0.0 mm
Rate (mm/hr): 0.0 mm
Yesterday: 0.0 mm
September: 2.9 mm
Rain this Year: 543.7 mm
2 rain days this September
Last Rain: 04/09/2026 at 08:43
Today
Partly Cloudy
Partly Cloudy
24°C
Barometer Humidity / Dew Point Moon
Current: 1021.0 mb Falling 1 °C/hr
1-Hour Trend: Falling
3-Hour Trend: Steady
High: 1025.0  | Low: 1021.0
Humidity: 72 % Decreased 9% since last hour
Humidex: 24.5°C
Dew Point: 15.2°C Increased 0.2°C since last hour
Wet Bulb: 17.3°C
Waning Crescent
Waning Crescent, Moon at 24 days in cycle
27%
Illuminated
UVI Forecast Solar Information
06/09/2026   Medium   4.7   
07/09/2026   Medium   4.3   
08/09/2026   Medium   3.7   
Sunrise is at: 06:26
Solar Noon at: 13:03
Sunset is at: 19:40
Heat Index Cooling Degree Days Sun
Current: 20.4°C
Today: 20.5°C at 10:29
Yesterday: 21.7°C
Last Week: 25.2°C
Record: 39.7°C   25/06/2026
Today: 0.0
September: 0.7
2026 to Date: 235.1
Heating Degree Days
2026 to Date: 1411.1
Daylight: 13:14:00
-00:03:47
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 06:26
Sunset is at: 19:40
Moonrise is at: 00:04
Moonset is at: 17:33
Cloud Height: 2255 ft
Sun 06 September
Low Tide: 0004 1.9
High Tide: 0618 3.9
Low Tide: 1251 2.0
High Tide: 1854 3.9
Air Density: 1.204 kg/m3
New Moon: 12 August 2026
Full Moon: 28 August 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 21.2°C
Sys Check: 00:20
Sys Reset: 22 Days 21 Hours 8 Minutes 23 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:
3.3 at 10:40


Tonight's and Tomorrow's Outlook for the Southampton Area
Tonight
Mostly Cloudy
Mostly Cloudy
16°C
Partly cloudy early followed by cloudy skies overnight. Low 16C. Winds SW at 5 to 10 mph.
Tomorrow
Cloudy
Cloudy
23°C
Cloudy. High 23C. Winds WSW at 10 to 15 mph.
Short Term Weather Forecast for the Southampton Area
Tomorrow
Cloudy
Cloudy
23°C
Tomorrow night
Light Rain Late
Light Rain Late
15°C
Tuesday
AM Clouds, PM Sun
AM Clouds, PM Sun
20°C
Tuesday night
Mostly Clear
Mostly Clear
11°C
Wednesday
Partly Cloudy
Partly Cloudy
21°C
Wednesday night
Mostly Cloudy
Mostly Cloudy
10°C