Cool
Average highs are around 17°C, so pack for cooler days.
September verdict
Poor for holiday weather
Average highs are around 17°C, so pack for cooler days. Sunshine averages 4h per day, so this is not one of the brighter months. Rainfall averages 55mm, which is relatively low for holiday planning.
Monthly averages
Temp
17°C
Rain
55mm
Sun
4h
Sea
13°C
Weather score
30
Poor
Cool
Average highs are around 17°C, so pack for cooler days.
Drier
Rainfall averages 55mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 4h 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 Durham, England, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
September17°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
September55mm average rain
September is close to Durham's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
September4 hours average sun
September sits close to Durham's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
September13°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
September30 weather score
September sits close to Durham's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.