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Updated Live on: 18/05/2026 04:45 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
mostly clear

Currently 7.9°C, Max: 8.4°C, Min: 7.9°C 7.9°C Colder 0.3°C than last hour

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Feels like:  8°C

24-hr Difference
0°C 
Records Today Yesterday
Highs: 8.4°C
01:15
17.4°C
10:02
Lows: 7.9°C
04:41
7.5°C
05:19
 Calm WNW
0.0

Gusting: 0.0 mph
0 Bft - Calm
Max Today: 7.1 at 03:07
Gust Month: 15.0 mph on May 8
Rain Today: 0.1 mm
Last Rain at: 03:08
Rate (mm/hr): 0.0 mm
Yesterday: 1.3 mm
May: 21.5 mm
Rain this Year: 426.5 mm
9 rain days this May
Today
AM Showers
AM Showers
14°C
Barometer Humidity / Dew Point Moon
Current: 1011.0 mb  
1-Hour Trend: Steady
3-Hour Trend: Falling
High: 1012.0  | Low: 1011.0
Humidity: 98 % Increased 1% since last hour
Humidex: 8.2°C
Dew Point: 7.6°C Decreased 0.1°C since last hour
Wet Bulb: 7.8°C
Waxing Crescent
Waxing Crescent, Moon at 1 days in cycle
3%
Illuminated
UVI Forecast Solar Information
18/05/2026   Medium   5.0   
19/05/2026   Medium   5.2   
20/05/2026   Medium   5.7   
Sunrise is at: 05:12
Solar Noon at: 13:02
Sunset is at: 20:52
Wind Chill Heating Degree Days Sun
Current: 7.9°C
Today: 6.3°C  at 04:37
Yesterday: 6.2°C
Last Week: 3.2°C
Record: -13.3°C   01/03/2018
Today: 1.9
May: 107.0
2026 to Date: 1299.3
Cooling Degree Days
2026 to Date: 0.0
Daylight: 15:40:00
+ 00:02:47
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 05:12
Sunset is at: 20:52
Moonrise is at: 05:49
Moonset is at: 23:36
Cloud Height: 227 ft
Mon 18 May
Low Tide: 0609 0.6
High Tide: 1216 4.7
Low Tide: 1832 0.8
Air Density: 1.248 kg/m3
New Moon: 16 May 2026
Full Moon: 31 May 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 19.9°C
Sys Check: 00:20
Sys Reset: 2 Days 16 Hours 27 Minutes 29 Seconds
Highs: Lows:
35.2°C on:
19/07/2022
-8.2°C on:
10/01/2009
Avg Daytime Records
  29.2°C on: 19 Jul 2022   -4.0°C on: 01 Mar 2018
Avg Night Time Records
  24.8°C on: 20 Jul 2016   -6.1°C on: 10 Jan 2009
Soton & New Forest Fire Index
Currently:
-2.2 at 04:45


Tonight's and Tomorrow's Outlook for the Southampton Area
Tonight
Rain
Rain
11°C
Rain likely. Low 11C. Winds S at 10 to 20 mph. Chance of rain 100%. Rainfall around 6mm. Locally heavy rainfall possible.
Tomorrow
AM Showers
AM Showers
16°C
Showers in the morning, then cloudy in the afternoon. High 16C. Winds SW at 15 to 25 mph. Chance of rain 50%.
Short Term Weather Forecast for the Southampton Area
Tomorrow
AM Showers
AM Showers
16°C
Tomorrow night
Showers Late
Showers Late
12°C
Wednesday
AM Clouds, PM Sun
AM Clouds, PM Sun
18°C
Wednesday night
Mostly Cloudy
Mostly Cloudy
11°C
Thursday
AM Clouds, PM Sun
AM Clouds, PM Sun
20°C
Thursday night
Partly Cloudy
Partly Cloudy
13°C