Yearly weather and climate in Southampton, United Kingdom

The yearly weather in Southampton runs from around 2°C in January to 21°C in August. June is the driest month at 8 rainy days; March the wettest at 21. Here is the annual climate data, so you know what you are packing for.

Best time to visit

The best weather is typically in Jun, with mild temperatures and lower rainfall.

Sunshine

Expect up to 12.8 hours of clear skies in Jun, but only 2.7 hours in Dec. Pack sunglasses and SPF accordingly.

Rainfall

It rains the most in Mar (129mm over 21 days). A reliable rain jacket is a must-have if visiting then.

Day-to-night swings

Temperatures typically drop by 7°C from day to night. Make sure to pack layers for the evenings.

Average temperatures and rainfall

Daily highs and lows in Southampton, averaged over 10 years of recorded weather, with the number of days it typically rains.

  1. 847°236°11Jan
  2. 1151°440°11Feb
  3. 1151°541°21Mar
  4. 1355°643°15Apr
  5. 1864°948°12May
  6. 2170°1253°8Jun
  7. 2169°1356°15Jul
  8. 2170°1356°12Aug
  9. 2068°1254°14Sep
  10. 1661°1050°15Oct
  11. 1153°642°12Nov
  12. 1050°643°11Dec

Bars span the average daily low to high. Numbers under the drop are rainy days per month (1mm or more) — hover a month for its total rainfall. Jun is typically driest at 8 days (26mm); Mar the wettest at 21 days (129mm).

Average monthly temperature and rainfall in Southampton
MonthAverage highAverage lowRainy daysTotal rainfall
Jan8°C2°C1195mm
Feb11°C4°C1178mm
Mar11°C5°C21129mm
Apr13°C6°C1590mm
May18°C9°C1278mm
Jun21°C12°C826mm
Jul21°C13°C1592mm
Aug21°C13°C1271mm
Sep20°C12°C14115mm
Oct16°C10°C15110mm
Nov11°C6°C1295mm
Dec10°C6°C1183mm

Weather data by Open-Meteo.com

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