Cool
Average highs are around 9°C, so pack for cooler days.
Weather Guide
Belfast, Northern Ireland, United Kingdom Average Monthly Weather
Weather score22Poor annual avg
Best months: July, June, August
Across the year, average daytime temperatures are around 12°C, sunshine averages 3.6h per day, and rainfall totals about 981mm. Sea temperatures average 11°C across the year.
Annual weather
Annual averages
Temp
12°C
Rain
981mm
Annual total
Sun
3.6h
Sea
11°C
Weather score
22
Poor avg
Seasonal climate calendar
Trip feel
Showers
Rainfall averages 96mm, so some wet days are possible.
Limited sun
Sunshine averages 2h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 12°C, so the water can feel cool.
Map
Weather map
Compare Belfast, Northern Ireland, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
November9°C average high
November is on the cooler side of Belfast'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
November96mm average rain
November is wetter than Belfast's yearly average, so flexible plans matter more.
Driest monthsFebruary to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
November2 hours average sun
November is below Belfast's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
November12°C average sea
November sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to October
Sea temperatures are usually near 13°C in this stretch, so swimming comfort is at its strongest.
Weather score
November14 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.
