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Updated Live on: 29/09/2026 22:40 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
mostly clear

Currently 17.7°C, Max: 21.3°C, Min: 12.4°C 17.7°C Colder 0.2°C than last hour

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Feels like:  18°C

24-hr Difference
5.2°CWarmer 5.2°C than yesterday at this time
Records Today Yesterday
Highs: 21.3°C
12:10
18.1°C
15:40
Lows: 12.4°C
00:00
9.6°C
06:50
 Wind from N N
3.6

Gusting: 2.4 mph
1 Bft - Light Breeze
Max Today: 16.0 at 10:50
Gust Month: 18.9 mph on Sep 4
Rain Today: 0.0 mm
Rate (mm/hr): 0.0 mm
Yesterday: 0.1 mm
September: 34.2 mm
Rain this Year: 575.0 mm
12 rain days this September
Last Rain: 28/09/2026 at 14:06
Tonight
Showers
Showers
19°C
Barometer Humidity / Dew Point Moon
Current: 1009.0 mb Falling 1 °C/hr
1-Hour Trend: Falling
3-Hour Trend: Falling
High: 1019.0  | Low: 1009.0
Humidity: 98 %  
Humidex: 23.3°C
Dew Point: 17.4°C Decreased 0.2°C since last hour
Wet Bulb: 17.5°C
Waning Gibbous
Waning Gibbous, Moon at 18 days in cycle
87%
Illuminated
UVI Forecast Solar Information
29/09/2026   Low   2.9   
30/09/2026   Low   2.8   
01/10/2026   Low   2.6   
Sunrise is at: 07:02
Solar Noon at: 12:55
Sunset is at: 18:48
Wind Chill Heating Degree Days Sun
Current: 18.7°C
Today: 12.4°C  at 00:03
Yesterday: 9.6°C
Last Week: 10.0°C
Record: -13.3°C   01/03/2018
Today: 3.3
September: 77.6
2026 to Date: 1478.0
Cooling Degree Days
2026 to Date: 235.1
Daylight: 11:46:00
-00:03:50
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 07:02
Sunset is at: 18:48
Moonrise is at: 19:30
Moonset is at: 10:41
Cloud Height: 237 ft
Tue 29 September
High Tide: 0025 4.8
Low Tide: 0645 0.7
High Tide: 1245 4.9
Low Tide: 1905 0.8
Air Density: 1.200 kg/m3
New Moon: 11 September 2026
Full Moon: 26 September 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 20.2°C
Sys Check: 00:20
Sys Reset: 18 Days 9 Hours 11 Minutes 14 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:
-1.7 at 22:40


Tomorrow's and Tomorrow night's Outlook for the Southampton Area
Tomorrow
Mostly Sunny
Mostly Sunny
22°C
A few passing clouds, otherwise generally sunny. Slight chance of a rain shower. High 22C. Winds SSW at 10 to 20 mph.
Tomorrow night
Showers Early
Showers Early
12°C
Rain showers early with clearing later at night. Low 12C. Winds SW at 5 to 10 mph. Chance of rain 40%.
Short Term Weather Forecast for the Southampton Area
Tomorrow night
Showers Early
Showers Early
12°C
Thursday
Mostly Sunny
Mostly Sunny
21°C
Thursday night
Partly Cloudy
Partly Cloudy
12°C
Friday
Partly Cloudy
Partly Cloudy
20°C
Friday night
Partly Cloudy
Partly Cloudy
12°C
Saturday
Partly Cloudy
Partly Cloudy
21°C