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:
23°C
73.4°F
°C °F

Condition: Clear Sky

Pressure: 1,014 hPa

Feel like: 21 °C

Temperature: 23°C

Cloud: 3%

Humidity: 43%

Wind: NW - 11 km/h

Visibility: 27.2 km

Weather forecast

Sat
26 Sep
12°C / 20°C
Drizzle
Sun
27 Sep
10°C / 18°C
Overcast
Mon
28 Sep
13°C / 23°C
Drizzle
Tue
29 Sep
15°C / 21°C
Slight Rain
Wed
30 Sep
12°C / 17°C
Drizzle
Hourly forecast today:
16:00 PM
10° / 23°
10° / 23°
Clear Sky
43% 24 km/h
17:00 PM
10° / 22°
10° / 22°
Clear Sky
46% 26 km/h
18:00 PM
11° / 21°
11° / 21°
Clear Sky
54% 33 km/h
19:00 PM
11° / 18°
11° / 18°
Clear Sky
64% 34 km/h
20:00 PM
11° / 17°
11° / 17°
Overcast
67% 28 km/h
21:00 PM
11° / 17°
11° / 17°
Overcast
71% 22 km/h
22:00 PM
11° / 16°
11° / 16°
Partly Cloudy
71% 19 km/h
23:00 PM
10° / 16°
10° / 16°
Overcast
68% 29 km/h
00:00 AM
9° / 15°
9° / 15°
Overcast
66% 29 km/h
01:00 AM
9° / 15°
9° / 15°
Overcast
68% 24 km/h
02:00 AM
10° / 15°
10° / 15°
Overcast
73% 24 km/h

30 Day Averages and Extremes

  • Average high 18.5°C
  • Average low 11.9°C
  • Hottest day 23°C (20 September 2026)
  • Coldest day 0°C (08 October 2026)
  • Average humidity 71.67%
  • Days with precipitation 20 days
  • Highest precipitation 45 mm (29 September 2026)

Yesterday's Data

  • Max: 23°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 mild weather in Southampton, with temperatures between 16ºC to 19ºC (60.8ºF to 66.2ºF), consider wearing:
- Comfortable jeans or slacks
- Cotton socks
- Sun hat (if spending time outdoors)
- Scarf (optional)

Temperature

Early
14°C / 15°C
Morning
15°C / 17°C
Afternoon
10°C / 23°C
Evening
11°C / 17°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 440
  • CO 175
  • NH3 4
  • NO2 7
  • O3 88
  • PM10 12
  • PM25 8
  • SO2 0
  • CH4 1,412

Sunrise / Sunset

05:58
17:55