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Updated Live on: 20/08/2026 11:20 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
partly cloudy

Currently 20.6°C, Max: 21.6°C, Min: 13.7°C 20.6°C Warmer 1°C than last hour

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Feels like:  21°C

24-hr Difference
0.6°CWarmer 0.6°C than yesterday at this time
Records Today Yesterday
Highs: 21.6°C
11:02
22.6°C
12:12
Lows: 13.7°C
03:48
14.7°C
23:59
 Wind from S S
1.7

Gusting: 0.0 mph
1 Bft - Light Air
Max Today: 11.0 at 10:14
Gust Month: 14.1 mph on Aug 4
Rain Today: 0.0 mm
Rate (mm/hr): 0.0 mm
Yesterday: 5.9 mm
August: 5.9 mm
Rain this Year: 522.5 mm
1 rain day this August
Last Rain: 19/08/2026 at 14:05
Today
AM Thunderstorms
AM Thunderstorms
21°C
Barometer Humidity / Dew Point Moon
Current: 1003.0 mb  
1-Hour Trend: Steady
3-Hour Trend: Falling
High: 1005.0  | Low: 1003.0
Humidity: 61 % Decreased 9% since last hour
Humidex: 23.3°C
Dew Point: 12.8°C Decreased 1.1°C since last hour
Wet Bulb: 16.1°C
Waxing Gibbous
Waxing Gibbous, Moon at 7 days in cycle
53%
Illuminated
UVI Forecast Solar Information
20/08/2026   Medium   4.8   
21/08/2026   Medium   4.7   
22/08/2026   Medium   4.5   
Sunrise is at: 06:00
Solar Noon at: 13:08
Sunset is at: 20:16
Heat Index Cooling Degree Days Sun
Current: 20.6°C
Today: 21.6°C at 11:02
Yesterday: 22.6°C
Last Week: 33.5°C
Record: 39.7°C   25/06/2026
Today: 0.0
August: 47.8
2026 to Date: 230.3
Heating Degree Days
2026 to Date: 1385.2
Daylight: 14:16:00
-00:03:35
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 06:00
Sunset is at: 20:16
Moonrise is at: 15:35
Moonset is at: 22:43
Cloud Height: 3313 ft
Thu 20 August
High Tide: 0435 3.9
Low Tide: 1010 1.7
High Tide: 1705 4.0
Low Tide: 2238 1.9
Air Density: 1.183 kg/m3
New Moon: 12 August 2026
Full Moon: 28 August 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 23.5°C
Sys Check: 00:20
Sys Reset: 5 Days 21 Hours 48 Minutes 48 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:
9.0 at 11:20


Tonight's and Tomorrow's Outlook for the Southampton Area
Tonight
Mostly Clear
Mostly Clear
11°C
A few passing clouds. Low 11C. Winds NNW at 10 to 15 mph.
Tomorrow
PM Showers
PM Showers
21°C
Sunshine in the morning giving way to clouds and a few showers during the afternoon. High 21C. Winds N at 5 to 10 mph. Chance of rain 30%.
Short Term Weather Forecast for the Southampton Area
Tomorrow
PM Showers
PM Showers
21°C
Tomorrow night
Partly Cloudy
Partly Cloudy
10°C
Saturday
Mostly Sunny
Mostly Sunny
23°C
Saturday night
Mostly Clear
Mostly Clear
10°C
Sunday
Mostly Sunny
Mostly Sunny
24°C
Sunday night
Clear
Clear
12°C