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Updated Live on: 17/08/2026 10:00 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
mostly cloudy

Currently 22.6°C, Max: 23.2°C, Min: 16.2°C 22.6°C Warmer 2.4°C than last hour

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Feels like:  23°C

24-hr Difference
2.9°CWarmer 2.9°C than yesterday at this time
Records Today Yesterday
Highs: 23.2°C
09:26
26.5°C
14:48
Lows: 16.2°C
06:15
17.1°C
06:35
 Calm WNW
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
Today
Mostly Cloudy
Mostly Cloudy
27°C
Barometer Humidity / Dew Point Moon
Current: 1015.0 mb Rising 1 °C/hr
1-Hour Trend: Rising slowly
3-Hour Trend: Rising slowly
High: 1016.0  | Low: 1015.0
Humidity: 67 % Decreased 4% since last hour
Humidex: 27.3°C
Dew Point: 16.2°C Increased 1.4°C since last hour
Wet Bulb: 18.7°C
Waxing Crescent
Waxing Crescent, Moon at 4 days in cycle
24%
Illuminated
UVI Forecast Solar Information
17/08/2026   Medium   5.8   
18/08/2026   Medium   5.8   
19/08/2026   Medium   5.1   
Sunrise is at: 05:55
Solar Noon at: 13:09
Sunset is at: 20:22
Heat Index Cooling Degree Days Sun
Current: 22.6°C
Today: 23.2°C at 09:26
Yesterday: 26.5°C
Last Week: 33.5°C
Record: 39.7°C   25/06/2026
Today: 0.0
August: 43.2
2026 to Date: 225.7
Heating Degree Days
2026 to Date: 1383.1
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: 2758 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: 1.187 kg/m3
New Moon: 12 August 2026
Full Moon: 28 August 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 26.2°C
Sys Check: 00:20
Sys Reset: 2 Days 20 Hours 28 Minutes 52 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:
5.7 at 10:00


Tonight's and Tomorrow's Outlook for the Southampton Area
Tonight
Mostly Clear
Mostly Clear
16°C
Mainly clear. Low 16C. Winds W at 10 to 15 mph.
Tomorrow
Mostly Cloudy
Mostly Cloudy
25°C
Mostly cloudy. Warm. High near 25C. Winds W at 10 to 20 mph.
Short Term Weather Forecast for the Southampton Area
Tomorrow
Mostly Cloudy
Mostly Cloudy
25°C
Tomorrow night
Light Rain Late
Light Rain Late
16°C
Wednesday
PM Showers
PM Showers
23°C
Wednesday night
Partly Cloudy
Partly Cloudy
14°C
Thursday
PM Showers
PM Showers
22°C
Thursday night
Partly Cloudy
Partly Cloudy
12°C