Southampton, United Kingdom Weather

  1. Southampton, United Kingdom Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Southampton over the next 12 hours
  7. Temperature and possibility of rain in Southampton in the coming days
  8. Rainfall in Southampton in the coming days
  9. Southampton Weather Summary
  10. Weather averages by month
  11. Southampton's weather
  12. Frequently asked questions
  13. Comments
Southampton, Weather
(Photo by Viktor Forgacs on Unsplash)

Current conditions

Updated:
20°C
68.0°F
°C °F

Condition: Mainly Clear

Pressure: 1,013 hPa

Feel like: 19 °C

Temperature: 20°C

Cloud: 22%

Humidity: 49%

Wind: ESE - 7 km/h

Visibility: 24.6 km

Weather forecast

Sun
09 Aug
16°C / 26°C
Overcast
Mon
10 Aug
17°C / 26°C
Clear Sky
Tue
11 Aug
17°C / 30°C
Overcast
Wed
12 Aug
19°C / 31°C
Clear Sky
Thu
13 Aug
18°C / 31°C
Overcast
Hourly forecast today:
23:00 PM
9° / 20°
9° / 20°
Mainly Clear
49% 15 km/h
00:00 AM
11° / 19°
11° / 19°
Clear Sky
60% 11 km/h
01:00 AM
12° / 19°
12° / 19°
Overcast
63% 11 km/h
02:00 AM
12° / 18°
12° / 18°
Overcast
65% 8 km/h
03:00 AM
11° / 18°
11° / 18°
Clear Sky
63% 12 km/h
04:00 AM
9° / 18°
9° / 18°
Overcast
56% 9 km/h
05:00 AM
7° / 18°
7° / 18°
Overcast
50% 10 km/h
06:00 AM
7° / 19°
7° / 19°
Overcast
48% 10 km/h
07:00 AM
8° / 20°
8° / 20°
Clear Sky
47% 10 km/h
08:00 AM
9° / 21°
9° / 21°
Clear Sky
45% 12 km/h
09:00 AM
9° / 24°
9° / 24°
Clear Sky
38% 15 km/h

30 Day Averages and Extremes

  • Average high 23.57°C
  • Average low 14.93°C
  • Hottest day 31°C (08 August 2026)
  • Coldest day 0°C (21 August 2026)
  • Average humidity 54.5%
  • Days with precipitation 11 days
  • Highest precipitation 32 mm (29 July 2026)

Yesterday's Data

  • Max: 25°C
  • Min: 14°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Southampton over the next 12 hours

Temperature and possibility of rain in Southampton in the coming days

Rainfall in Southampton in the coming days

Southampton Climate Summary

Southampton features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 12.0ºC (53.6ºF), which is about 1.25% higher than the national average for United Kingdom. Annually, the city experiences approximately 77.11 millimeters (3.04 inches) of rainfall, spread across 151.0 rainy days, accounting for 41.37% of the year.

Longitude 50.9097004
Latitude -1.4043509
Yearly high temperature 14.11ºC (57.4ºF)
Yearly low temperature 7.99ºC (46.38ºF)
Hottest month July 21.11ºC (70.0ºF)
Coldest month January 3.4ºC (38.12ºF)
Yearly precip 77.11mm (3.04in)
Days with rainfall 151.0 days (41.37%)
Driest month September (79.51%)
Wettest month October (83.01%)

Weather averages by month

Month High / Low (°C) Rain
January 7.66° / 3.4° 13.64 days
February 8.0° / 3.44° 12.73 days
March 10.43° / 4.17° 10.09 days
April 13.46° / 5.78° 10.45 days
May 15.92° / 8.15° 12.18 days
June 18.76° / 11.03° 12.82 days
July 21.11° / 13.2° 12.55 days
August 20.52° / 13.59° 13.36 days
September 18.75° / 11.9° 10.09 days
October 15.04° / 9.74° 14.0 days
November 10.96° / 6.75° 14.64 days
December 8.74° / 4.7° 14.45 days

Southampton's weather

Frequently asked questions

1. What is the hottest month in Southampton?

July has the highest average monthly temperature (daily mean of 21.11ºC) and January are the coolest (daily mean of 3.4ºC).

2. What should I wear in Southampton today?

For today's very hot weather in Southampton, with the high temperatures above 31ºC (87.8ºF), consider wearing:
- Lightweight, loose-fitting shorts
- Sleeveless tops or vests
- Ultra-thin, breathable socks
- Broad-brimmed sun hat

Temperature

Early
9°C / 14°C
Morning
11°C / 20°C
Afternoon
8°C / 25°C
Evening
12°C / 21°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 445
  • CO 167
  • NH3 3
  • NO2 40
  • O3 45
  • PM10 14
  • PM25 10
  • SO2 3
  • CH4 1,415

Sunrise / Sunset

04:44
19:38