Cool
Average highs are around 11°C, so pack for cooler days.
Weather Guide
Portsmouth, England, United Kingdom Average Monthly Weather
Weather score30Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 14°C, sunshine averages 4.4h per day, and rainfall totals about 788mm. Sea temperatures average 13°C across the year.
Annual weather
Annual averages
Temp
14°C
Rain
788mm
Annual total
Sun
4.4h
Sea
13°C
Weather score
30
Poor avg
Seasonal climate calendar
Trip feel
Showers
Rainfall averages 83mm, so some wet days are possible.
Limited sun
Sunshine averages 2.5h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 13°C, so the water can feel cool.
Map
Weather map
Compare Portsmouth, England, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
November11°C average high
November is on the cooler side of Portsmouth's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
November83mm average rain
November is one of Portsmouth's wettest months, so rain is likely to be a major planning factor.
Driest monthsFebruary to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
November2.5 hours average sun
November is below Portsmouth's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
November13°C average sea
November is close to Portsmouth's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to October
Sea temperatures are usually near 17°C in this stretch, so swimming comfort is at its strongest.
Weather score
November18 weather score
November is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
