- Clothing
- Warm jacket and comfortable layers recommended.
Tomorrow's Weather Forecast - Southampton
Tomorrow's weather in Southampton. high 21°C (70°F), low 12°C (54°F). Overcast.
Tomorrow’s Outlook
Tomorrow brings a similar temperature to today. Mild conditions with dry weather expected all day. Humidity holds around 77%, giving the air a damp, heavy feel even without much heat behind it. A light breeze near 21 km/h is expected. Sunrise is at 6:36 AM and sunset at 7:26 PM, for about 12h 50m of daylight.
- Tomorrow
- 21°/ 12°
- Today22° / 15°
Tomorrow’s Hourly Weather Outlook
Morning6 AM – Noon15°
- Rain probability
- 0%
- Wind speed
- 15 km/h
AfternoonNoon – 6 PM21°
- Rain probability
- 3%
- Wind speed
- 21 km/h
Evening6 PM – Midn19°
- Rain probability
- 8%
- Wind speed
- 16 km/h
NightMidn – 6 AM15°
- Rain probability
- 0%
- Wind speed
- 8 km/h
24-Hour Rain & Temperature Forecast
Tomorrow12 Sep
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Planning Advice for Tomorrow
- Outdoor
- Good conditions for outdoor activities.
- Travel
- Standard travel conditions expected.
Sunrise & Sunset
Sunrise
Dawn 6:06 AMTotal Daylight
Full day forecastSolar noon 1:01 PM
Sunset
Dusk 7:56 PMvs today-4 min daylight
Sunrise shift2 min later
Sunset shift2 min earlier
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Southampton is forecast to reach a high of 21°C tomorrow, with an overnight low around 12°C. That's 1° above the long-term average high of 20°C for this time of year. It continues a recent pattern — 24 of the last 28 days with published data have run warmer than normal. Expect little chance of rain (8% probability) and moderate breezes averaging 21 km/h. Air quality is currently good (AQI 23), with no notable outdoor health concerns.
Today vs Normal
22°C+2° above normal
The long-term average high for today is 20°C.
24 of the last 28 days with published data ran above normal.
It continues that pattern - today's forecast is also running above normal.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air Quality
Good
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.