spacer
Updated Live on: 18/06/2026 11:45 - 
Summary / Temperature Wind Rain / Melted Snow Outlook
mostly cloudy

Currently 20.2°C, Max: 20.6°C, Min: 14.2°C 20.2°C Warmer 1.9°C than last hour

---

Feels like:  20°C

24-hr Difference
2.4°CWarmer 2.4°C than yesterday at this time
Records Today Yesterday
Highs: 20.6°C
11:33
21.4°C
13:17
Lows: 14.2°C
05:15
14.3°C
05:12
 Wind from NW NW
1.4

Gusting: 0.0 mph
1 Bft - Light Air
Max Today: 6.0 at 09:35
Gust Month: 24.5 mph on Jun 6
Rain Today: 0.0 mm
Rate (mm/hr): 0.0 mm
Yesterday: 0.6 mm
June: 80.3 mm
Rain this Year: 515.7 mm
12 rain days this June
Last Rain: 17/06/2026 at 08:12
Today
AM Clouds, PM Sun
AM Clouds, PM Sun
22°C
Barometer Humidity / Dew Point Moon
Current: 1018.0 mb Rising 1 °C/hr
1-Hour Trend: Rising
3-Hour Trend: Steady
High: 1019.0  | Low: 1017.0
Humidity: 81 % Decreased 7% since last hour
Humidex: 25.4°C
Dew Point: 16.8°C Increased 0.6°C since last hour
Wet Bulb: 18.1°C
Waxing Crescent
Waxing Crescent, Moon at 3 days in cycle
16%
Illuminated
UVI Forecast Solar Information
18/06/2026   High   7.1   
19/06/2026   High   7.0   
20/06/2026   High   6.9   
Sunrise is at: 04:51
Solar Noon at: 13:06
Sunset is at: 21:22
Heat Index Cooling Degree Days Sun
Current: 20.2°C
Today: 20.6°C at 11:33
Yesterday: 21.4°C
Last Week: 26.2°C
Record: 34.2°C   19/07/2022
Today: 0.0
June: 0.0
2026 to Date: 33.0
Heating Degree Days
2026 to Date: 1381.3
Daylight: 16:31:00
+ 00:00:24
Almanac Outside Now Station All Time Records Fire Risk
Sunrise is at: 04:51
Sunset is at: 21:22
Moonrise is at: 08:42
Moonset is at: 00:02
Cloud Height: 1492 ft
Thu 18 June
High Tide: 0123 4.5
Low Tide: 0739 0.7
High Tide: 1410 4.6
Low Tide: 2004 1.0
Air Density: 1.200 kg/m3
New Moon: 15 June 2026
Full Moon: 29 June 2026
Server Data
Sys Version: 10.37R-(b79)
Free Memory: 1049MB
Server Temp: 22.0°C
Sys Check: 00:20
Sys Reset: 5 Days 22 Hours 3 Minutes 6 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:
0.6 at 11:45


Tonight's and Tomorrow's Outlook for the Southampton Area
Tonight
Light Rain Late
Light Rain Late
14°C
Partly cloudy this evening then becoming cloudy with periods of light rain after midnight. Low 14C. Winds WSW at 5 to 10 mph. Chance of rain 40%.
Tomorrow
Partly Cloudy
Partly Cloudy
24°C
Partly cloudy skies. Warm. High 24C. Winds WSW at 10 to 15 mph.
Short Term Weather Forecast for the Southampton Area
Tomorrow
Partly Cloudy
Partly Cloudy
24°C
Tomorrow night
Mostly Cloudy
Mostly Cloudy
16°C
Saturday
Mostly Cloudy
Mostly Cloudy
24°C
Saturday night
Partly Cloudy
Partly Cloudy
15°C
Sunday
Sunny
Sunny
30°C
Sunday night
Mostly Clear
Mostly Clear
19°C