🇬🇧 Weather in Southampton
Map Overlays:
Hourly Forecast for Southampton
00:00
11°
21%
01:00
10°
25%
02:00
10°
25%
03:00
10°
26%
04:00
10°
27%
05:00
10°
27%
06:00
10°
27%
07:00
10°
26%
08:00
12°
22%
09:00
13°
18%
10:00
15°
15%
11:00
17°
6%
12:00
18°
2%
13:00
19°
9%
14:00
19°
13%
15:00
17°
19%
16:00
18°
18%
17:00
18°
16%
18:00
17°
17%
19:00
16°
22%
20:00
16°
26%
21:00
16°
26%
22:00
16°
26%
23:00
16°
19%
14-Day Forecast for Southampton
2026-09-09
Sunny
19° /
10°
2026-09-10
Overcast
19° /
10°
2026-09-11
Overcast
23° /
13°
2026-09-12
Overcast
22° /
12°
2026-09-13
Overcast
23° /
14°
2026-09-14
Overcast
25° /
14°
2026-09-15
Mist
25° /
16°
Additional Forecasts for Southampton
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 172.0 μg/m³
O₃ (Ozone) 48.0 μg/m³
NO₂ (Nitrogen Dioxide) 11.3 μg/m³
SO₂ (Sulphur Dioxide) 0.8 μg/m³
PM2.5 (Fine particles) 5.4 μg/m³
PM10 (Coarse particles) 10.0 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United Kingdom
Weather in Southampton — FAQ
Answers refreshed each request based on current conditions in Southampton.
What is the weather like right now in Southampton?
Right now in Southampton, United Kingdom the temperature is 11.0°C (feels like 10.0°C), with cloudy. Relative humidity is 79% and wind is 6.1 km/h.
What is today's high and low temperature in Southampton?
Today's forecast high in Southampton is 18.7°C and the overnight low is 9.6°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Southampton today?
The chance of precipitation in Southampton today is 7%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Southampton differ from nearby cities?
Even short distances can change temperatures noticeably. Southampton's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.