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Updated Live on: 16/09/2026 14:15 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
partly cloudy

Currently 18.5°C, Max: 18.7°C, Min: 9.8°C 18.5°C Warmer 0.4°C than last hour

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Feels like:  19°C

24-hr Difference
-1.2°CColder 1.2°C than yesterday at this time
Records Today Yesterday
Highs: 18.7°C
13:39
20.2°C
15:14
Lows: 9.8°C
06:56
12.2°C
23:58
 Wind from WSW WSW
3.6

Gusting: 5.3 mph
1 Bft - Light Breeze
Max Today: 7.4 at 11:13
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
Today
Mostly Cloudy
Mostly Cloudy
19°C
Barometer Humidity / Dew Point Moon
Current: 1019.0 mb Falling 1 °C/hr
1-Hour Trend: Falling
3-Hour Trend: Falling
High: 1022.0  | Low: 1017.0
Humidity: 60 % Decreased 1% since last hour
Humidex: 20.1°C
Dew Point: 10.6°C Increased 0.2°C since last hour
Wet Bulb: 14.2°C
Waxing Crescent
Waxing Crescent, Moon at 5 days in cycle
29%
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
Heat Index Cooling Degree Days Sun
Current: 18.5°C
Today: 18.7°C at 13:39
Yesterday: 20.2°C
Last Week: 24.5°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: 1435.5
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: 3366 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: 1.211 kg/m3
New Moon: 11 September 2026
Full Moon: 26 September 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 20.8°C
Sys Check: 00:20
Sys Reset: 5 Days 0 Hours 46 Minutes 34 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:
9.3 at 14:15


Tonight's and Tomorrow's Outlook for the Southampton Area
Tonight
Cloudy
Cloudy
14°C
Cloudy. Low 14C. Winds WSW at 10 to 15 mph.
Tomorrow
AM Light Rain
AM Light Rain
20°C
Cloudy with light rain in the morning...then becoming partly cloudy. High around 20C. Winds W at 10 to 20 mph. Chance of rain 60%.
Short Term Weather Forecast for the Southampton Area
Tomorrow
AM Light Rain
AM Light Rain
20°C
Tomorrow night
Partly Cloudy
Partly Cloudy
10°C
Friday
Cloudy
Cloudy
19°C
Friday night
Cloudy
Cloudy
16°C
Saturday
Cloudy
Cloudy
20°C
Saturday night
Drizzle Early
Drizzle Early
15°C