spacer
Updated Live on: 21/09/2026 22:30 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
Clear

Currently 15.2°C, Max: 21.9°C, Min: 8.4°C 15.2°C Colder 0.7°C than last hour

---

Feels like:  15°C

24-hr Difference
2.4°CWarmer 2.4°C than yesterday at this time
Records Today Yesterday
Highs: 21.9°C
14:19
20.9°C
13:38
Lows: 8.4°C
06:37
11.7°C
23:56
 Calm NW
0.0

Gusting: 0.0 mph
0 Bft - Calm
Max Today: 6.4 at 14:47
Gust Month: 18.9 mph on Sep 4
Rain Today: 0.1 mm
Last Rain at: 12:53
Rate (mm/hr): 0.0 mm
Yesterday: 0.9 mm
September: 33.0 mm
Rain this Year: 573.8 mm
10 rain days this September
Tonight
Mostly Clear
Mostly Clear
12°C
Barometer Humidity / Dew Point Moon
Current: 1031.0 mb Rising 1 °C/hr
1-Hour Trend: Rising
3-Hour Trend: Steady
High: 1033.0  | Low: 1030.0
Humidity: 89 % Increased 6% since last hour
Humidex: 18.2°C
Dew Point: 13.4°C Increased 0.4°C since last hour
Wet Bulb: 14.2°C
Waxing Gibbous
Waxing Gibbous, Moon at 10 days in cycle
77%
Illuminated
UVI Forecast Solar Information
21/09/2026   Medium   3.7   
22/09/2026   Medium   3.6   
23/09/2026   Medium   3.5   
Sunrise is at: 06:50
Solar Noon at: 12:58
Sunset is at: 19:06
Wind Chill Heating Degree Days Sun
Current: 15.2°C
Today: 8.4°C  at 06:37
Yesterday: 11.7°C
Last Week: 9.4°C
Record: -13.3°C   01/03/2018
Today: 5.9
September: 52.8
2026 to Date: 1453.3
Cooling Degree Days
2026 to Date: 235.1
Daylight: 12:16:00
-00:03:50
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 06:50
Sunset is at: 19:06
Moonrise is at: 17:20
Moonset is at: 00:16
Cloud Height: 847 ft
Mon 21 September
Low Tide: 0151 2.3
High Tide: 0713 3.7
Low Tide: 1419 2.3
High Tide: 1942 3.7
Air Density: 1.239 kg/m3
New Moon: 11 September 2026
Full Moon: 26 September 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 21.2°C
Sys Check: 00:20
Sys Reset: 10 Days 9 Hours 1 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:
-1.1 at 22:30


Tomorrow's and Tomorrow night's Outlook for the Southampton Area
Tomorrow
Mostly Sunny
Mostly Sunny
24°C
Sunny along with a few clouds. High 24C. Winds SSE at 5 to 10 mph.
Tomorrow night
Partly Cloudy
Partly Cloudy
12°C
Partly cloudy early with increasing clouds overnight. Low 12C. Winds light and variable.
Short Term Weather Forecast for the Southampton Area
Tomorrow night
Partly Cloudy
Partly Cloudy
12°C
Wednesday
Partly Cloudy
Partly Cloudy
24°C
Wednesday night
Partly Cloudy
Partly Cloudy
9°C
Thursday
Mostly Cloudy
Mostly Cloudy
21°C
Thursday night
Partly Cloudy
Partly Cloudy
12°C
Friday
Sunny
Sunny
23°C