Mild
Average highs are around 21°C, so days are mild rather than hot.
Weather Guide
Dereham, United Kingdom Average Monthly Weather
Weather score27Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 13°C, sunshine averages 4.1h per day, and rainfall totals about 669mm. Sea temperatures average 11°C across the year.
Annual weather
Annual averages
Temp
13°C
Rain
669mm
Annual total
Sun
4.1h
Sea
11°C
Weather score
27
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 58mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Weather map
Compare Dereham, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August21°C average high
August is one of Dereham's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August58mm average rain
August is close to Dereham's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
August5.8 hours average sun
August is brighter than Dereham's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August17°C average sea
August is one of Dereham's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 15°C in this stretch, so swimming comfort is at its strongest.
Weather score
August42 weather score
August is one of Dereham'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.
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