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Updated Live on: 17/09/2026 09:10 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
mostly cloudy

Currently 14.5°C, Max: 14.5°C, Min: 12.4°C 14.5°C Warmer 1.1°C than last hour

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Feels like:  14°C

24-hr Difference
2.6°CWarmer 2.6°C than yesterday at this time
Records Today Yesterday
Highs: 14.5°C
09:06
19.1°C
15:26
Lows: 12.4°C
03:36
9.8°C
06:56
 Wind from E E
3.6

Gusting: 5.0 mph
1 Bft - Light Breeze
Max Today: 9.7 at 04:09
Gust Month: 18.9 mph on Sep 4
Rain Today: 0.9 mm
Last Rain at: 08:55
Rate (mm/hr): 0.2 mm
Yesterday: 0.0 mm
September: 31.7 mm
Rain this Year: 572.5 mm
8 rain days this September
Today
AM Light Rain
AM Light Rain
20°C
Barometer Humidity / Dew Point Moon
Current: 1011.0 mb Falling 1 °C/hr
1-Hour Trend: Falling
3-Hour Trend: Falling
High: 1017.0  | Low: 1011.0
Humidity: 98 %  
Humidex: 18.0°C
Dew Point: 14.2°C Increased 1.1°C since last hour
Wet Bulb: 14.3°C
Waxing Crescent
Waxing Crescent, Moon at 6 days in cycle
36%
Illuminated
UVI Forecast Solar Information
17/09/2026   Medium   3.6   
18/09/2026   Medium   3.8   
19/09/2026   Medium   3.6   
Sunrise is at: 06:43
Solar Noon at: 13:00
Sunset is at: 19:15
Wind Chill Heating Degree Days Sun
Current: 14.3°C
Today: 11.2°C  at 04:09
Yesterday: 9.8°C
Last Week: 10.2°C
Record: -13.3°C   01/03/2018
Today: 2.1
September: 37.4
2026 to Date: 1437.9
Cooling Degree Days
2026 to Date: 235.1
Daylight: 12:32:00
-00:03:49
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 06:43
Sunset is at: 19:15
Moonrise is at: 14:27
Moonset is at: 21:19
Cloud Height: 233 ft
Thu 17 September
High Tide: 0249 4.2
Low Tide: 0849 1.4
High Tide: 1510 4.2
Low Tide: 2108 1.6
Air Density: 1.217 kg/m3
New Moon: 11 September 2026
Full Moon: 26 September 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 20.0°C
Sys Check: 00:20
Sys Reset: 5 Days 19 Hours 41 Minutes 30 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:
-1.9 at 09:10


Tonight's and Tomorrow's Outlook for the Southampton Area
Tonight
Partly Cloudy
Partly Cloudy
10°C
A few clouds. Low around 10C. Winds W at 10 to 15 mph.
Tomorrow
Mostly Cloudy
Mostly Cloudy
20°C
More clouds than sun. High near 20C. Winds WSW at 10 to 20 mph.
Short Term Weather Forecast for the Southampton Area
Tomorrow
Mostly Cloudy
Mostly Cloudy
20°C
Tomorrow night
Cloudy
Cloudy
16°C
Saturday
Cloudy
Cloudy
21°C
Saturday night
Cloudy
Cloudy
15°C
Sunday
AM Clouds, PM Sun
AM Clouds, PM Sun
21°C
Sunday night
Partly Cloudy
Partly Cloudy
12°C