Cool
Average highs are around 18°C, so pack for cooler days.
July verdict
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 4.9h per day, so this is not one of the brighter months. Rainfall averages 63mm, which is relatively low for holiday planning.
Monthly averages
Temp
18°C
Rain
63mm
Sun
4.9h
Sea
13°C
Weather score
35
Poor
Cool
Average highs are around 18°C, so pack for cooler days.
Drier
Rainfall averages 63mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 4.9h 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
Compare Belfast, Northern Ireland, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
July18°C average high
July is one of Belfast's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
July63mm average rain
July is one of Belfast's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsFebruary to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
July4.9 hours average sun
July is brighter than Belfast's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
July13°C average sea
July 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.
July35 weather score
July is one of Belfast's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.