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Updated Live on: 21/08/2026 17:15 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
mostly clear

Currently 19.3°C, Max: 20.9°C, Min: 10.9°C 19.3°C Warmer 1.1°C than last hour

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Feels like:  19°C

24-hr Difference
-1.8°CColder 1.8°C than yesterday at this time
Records Today Yesterday
Highs: 20.9°C
14:46
21.9°C
11:38
Lows: 10.9°C
06:16
13.5°C
23:54
 Calm N
0.0

Gusting: 0.0 mph
0 Bft - Calm
Max Today: 8.5 at 12:23
Gust Month: 14.1 mph on Aug 4
Rain Today: 0.0 mm
Rate (mm/hr): 0.0 mm
Yesterday: 0.1 mm
August: 6.1 mm
Rain this Year: 522.7 mm
2 rain days this August
Last Rain: 20/08/2026 at 15:44
Tonight
Partly Cloudy
Partly Cloudy
10°C
Barometer Humidity / Dew Point Moon
Current: 1014.0 mb  
1-Hour Trend: Steady
3-Hour Trend: Rising
High: 1014.0  | Low: 1009.0
Humidity: 44 % Decreased 6% since last hour
Humidex: 19.2°C
Dew Point: 6.7°C Decreased 0.9°C since last hour
Wet Bulb: 12.9°C
Waxing Gibbous
Waxing Gibbous, Moon at 8 days in cycle
65%
Illuminated
UVI Forecast Solar Information
21/08/2026   Medium   4.6   
22/08/2026   Medium   4.4   
23/08/2026   Medium   4.6   
Sunrise is at: 06:01
Solar Noon at: 13:08
Sunset is at: 20:14
Heat Index Cooling Degree Days Sun
Current: 19.3°C
Today: 20.9°C at 14:46
Yesterday: 21.9°C
Last Week: 32.1°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: 1388.0
Daylight: 14:13:00
-00:03:35
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 06:01
Sunset is at: 20:14
Moonrise is at: 16:41
Moonset is at: 23:23
Cloud Height: 5282 ft
Fri 21 August
High Tide: 0534 3.7
Low Tide: 1103 2.1
High Tide: 1802 3.8
Air Density: 1.203 kg/m3
New Moon: 12 August 2026
Full Moon: 28 August 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 22.9°C
Sys Check: 00:20
Sys Reset: 7 Days 3 Hours 43 Minutes 47 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:
26.7 at 17:15


Tomorrow's and Tomorrow night's Outlook for the Southampton Area
Tomorrow
Mostly Sunny
Mostly Sunny
23°C
Except for a few afternoon clouds, mainly sunny. High 23C. Winds NNE at 5 to 10 mph.
Tomorrow night
Partly Cloudy
Partly Cloudy
10°C
A few clouds. Low near 10C. Winds light and variable.
Short Term Weather Forecast for the Southampton Area
Tomorrow night
Partly Cloudy
Partly Cloudy
10°C
Sunday
Mostly Sunny
Mostly Sunny
24°C
Sunday night
Mostly Clear
Mostly Clear
13°C
Monday
Partly Cloudy
Partly Cloudy
23°C
Monday night
Mostly Cloudy
Mostly Cloudy
15°C
Tuesday
PM Showers
PM Showers
24°C