Portsmouth weather in January 2025

Expect 45°F daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Portsmouth in January. Check more long-term weather averages for Portsmouth in January before you book your next holiday to England in 2025/2026.

  • 45°F maximum daytime temperature in January in Portsmouth45
    45°F max day temperature
  • 2 hours of sunshine per day
  • 17 days with some rainfall in January in Portsmouth17
    17 days with some rainfall
  • 37°F minimum night-time temperature in January in Portsmouth37
    37°F min night temperature
  • 9 hours of daylight per day in January in Portsmouth9
    9 hours of daylight per day
  • No heat & humidity in January in Portsmouth0
    No heat & humidity
  • 3.1 inches monthly rainfall in January in Portsmouth3.1
    3.1 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Portsmouth1
    1 (Low) UV index
  • 46°F sea temperature in January in Portsmouth46
    46°F sea temperature

More about Portsmouth

Portsmouth by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Portsmouth

Blackpool Tower: Pick 'n' Mix pass on multi-attractions

  • Save on multiple attractions in Blackpool with Pick 'n' Mix pass
  • Build passes around preferred attractions & number of days
  • Including Circus, Eye, SEA LIFE, Dungeon & Madam Tussauds
Go to Blackpool Tower deal >>

View all Blackpool Tower offers

The January weather guide for England (Portsmouth) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

Back to top

More about England

How cold is it in Portsmouth in January?

Daytime temperatures usually reach 45°F in Portsmouth in January, falling to 37°F at night.

How sunny is it in Portsmouth in January?

There are normally 2 hours of bright sunshine each day in Portsmouth in January - that's 23% of daylight hours.

How warm is the sea around Portsmouth in January?

The average sea temperature around Portsmouth in January is 46°F.

Does it rain in Portsmouth in January?

There are usually 17 days with some rain in Portsmouth in January and the average monthly rainfall is 3.1 inches.

Portsmouth January sunrise & sunset times

Browse the sunrise and sunset times for Portsmouth in January 2025. Select a month to view Portsmouth sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:07 16:10
Thursday, 16th January 2025 07:59 16:30
Friday, 31st January 2025 07:42 16:55

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^