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Updated Live on: 17/08/2026 01:55 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
Clear

Currently 17.5°C, Max: 18.0°C, Min: 17.5°C 17.5°C Colder 0.1°C than last hour

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Feels like:  18°C

24-hr Difference
-1.6°CColder 1.6°C than yesterday at this time
Records Today Yesterday
Highs: 18.0°C
00:00
26.5°C
14:48
Lows: 17.5°C
00:29
17.1°C
06:35
 Calm E
0.0

Gusting: 0.0 mph
0 Bft - Calm
Max Today: 0.0 at 15:22
Gust Month: 14.1 mph on Aug 4
Rain Today: 0.0 mm
Rate (mm/hr): 0.0 mm
Yesterday: 0.0 mm
August: 0.0 mm
Rain this Year: 516.6 mm
47 days since it last rained
Last Rain: 30/06/2026 at 09:46
Tonight
Partly Cloudy
Partly Cloudy
17°C
Barometer Humidity / Dew Point Moon
Current: 1015.0 mb  
1-Hour Trend: Steady
3-Hour Trend: Falling
High: 1016.0  | Low: 1015.0
Humidity: 76 % Increased 2% since last hour
Humidex: 20.4°C
Dew Point: 13.2°C Increased 0.4°C since last hour
Wet Bulb: 15.1°C
Waxing Crescent
Waxing Crescent, Moon at 4 days in cycle
21%
Illuminated
UVI Forecast Solar Information
17/08/2026   Medium   5.9   
18/08/2026   Medium   5.9   
19/08/2026   Medium   5.0   
Sunrise is at: 05:55
Solar Noon at: 13:09
Sunset is at: 20:22
Wind Chill Heating Degree Days Sun
Current: 17.5°C
Today: 17.5°C  at 00:29
Yesterday: 17.1°C
Last Week: 17.0°C
Record: -13.3°C   01/03/2018
Today: 0.0
August: 1.5
2026 to Date: 1382.8
Cooling Degree Days
2026 to Date: 225.7
Daylight: 14:27:00
-00:03:31
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 05:55
Sunset is at: 20:22
Moonrise is at: 11:53
Moonset is at: 21:37
Cloud Height: 1868 ft
Mon 17 August
High Tide: 0207 4.5
Low Tide: 0814 0.8
High Tide: 1449 4.5
Low Tide: 2034 1.1
Air Density: 1.210 kg/m3
New Moon: 12 August 2026
Full Moon: 28 August 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 27.5°C
Sys Check: 00:20
Sys Reset: 2 Days 12 Hours 23 Minutes 51 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 01:55


Tomorrow's and Tomorrow night's Outlook for the Southampton Area
Tomorrow
Partly Cloudy
Partly Cloudy
27°C
Partly cloudy skies. Warm. High 27C. Winds W at 5 to 10 mph.
Tomorrow night
Partly Cloudy
Partly Cloudy
16°C
A few clouds from time to time. Low 16C. Winds W at 10 to 15 mph.
Short Term Weather Forecast for the Southampton Area
Tomorrow night
Partly Cloudy
Partly Cloudy
16°C
Tuesday
Cloudy
Cloudy
25°C
Tuesday night
Light Rain
Light Rain
15°C
Wednesday
Partly Cloudy
Partly Cloudy
22°C
Wednesday night
Mostly Clear
Mostly Clear
14°C
Thursday
Mostly Sunny
Mostly Sunny
23°C