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Updated Live on: 16/09/2026 18:10 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
partly cloudy

Currently 16.9°C, Max: 19.1°C, Min: 9.8°C 16.9°C Colder 0.5°C than last hour

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Feels like:  17°C

24-hr Difference
-0.8°CColder 0.8°C than yesterday at this time
Records Today Yesterday
Highs: 19.1°C
15:26
20.2°C
15:14
Lows: 9.8°C
06:56
12.2°C
23:58
 Wind from NNE NNE
2.9

Gusting: 3.3 mph
1 Bft - Light Air
Max Today: 9.7 at 15:12
Gust Month: 18.9 mph on Sep 4
Rain Today: 0.0 mm
Rate (mm/hr): 0.0 mm
Yesterday: 0.4 mm
September: 30.8 mm
Rain this Year: 571.6 mm
7 rain days this September
Last Rain: 15/09/2026 at 10:57
Tonight
Light Rain Late
Light Rain Late
14°C
Barometer Humidity / Dew Point Moon
Current: 1019.0 mb  
1-Hour Trend: Steady
3-Hour Trend: Falling
High: 1022.0  | Low: 1017.0
Humidity: 57 % Decreased 2% since last hour
Humidex: 17.4°C
Dew Point: 8.3°C Decreased 1°C since last hour
Wet Bulb: 12.6°C
Waxing Crescent
Waxing Crescent, Moon at 5 days in cycle
30%
Illuminated
UVI Forecast Solar Information
16/09/2026   Medium   3.3   
17/09/2026   Medium   3.5   
18/09/2026   Medium   3.7   
Sunrise is at: 06:42
Solar Noon at: 13:00
Sunset is at: 19:17
Wind Chill Heating Degree Days Sun
Current: 17.5°C
Today: 9.8°C  at 06:56
Yesterday: 11.8°C
Last Week: 10.2°C
Record: -13.3°C   01/03/2018
Today: 4.7
September: 35.8
2026 to Date: 1436.3
Cooling Degree Days
2026 to Date: 235.1
Daylight: 12:35:00
-00:03:50
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 06:42
Sunset is at: 19:17
Moonrise is at: 13:18
Moonset is at: 20:44
Cloud Height: 3639 ft
Wed 16 September
High Tide: 0210 4.4
Low Tide: 0816 1.1
High Tide: 1430 4.4
Low Tide: 2034 1.3
Air Density: 1.219 kg/m3
New Moon: 11 September 2026
Full Moon: 26 September 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 21.5°C
Sys Check: 00:20
Sys Reset: 5 Days 4 Hours 41 Minutes 31 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:
10.5 at 18:10


Tomorrow's and Tomorrow night's Outlook for the Southampton Area
Tomorrow
AM Light Rain
AM Light Rain
20°C
Becoming partly cloudy after some morning light rain. High near 20C. Winds W at 10 to 20 mph. Chance of rain 40%.
Tomorrow night
Partly Cloudy
Partly Cloudy
10°C
A few clouds. Low near 10C. Winds W at 10 to 15 mph.
Short Term Weather Forecast for the Southampton Area
Tomorrow night
Partly Cloudy
Partly Cloudy
10°C
Friday
Cloudy
Cloudy
19°C
Friday night
Cloudy
Cloudy
16°C
Saturday
PM Light Rain
PM Light Rain
20°C
Saturday night
Drizzle Early
Drizzle Early
14°C
Sunday
Partly Cloudy
Partly Cloudy
21°C