Mild
Average highs are around 21°C, so days are mild rather than hot.
Weather Guide
Rotterdam, Netherlands Average Monthly Weather
Weather score32Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 13°C, sunshine averages 4h per day, and rainfall totals about 801mm.
Annual weather
Annual averages
Temp
13°C
Rain
801mm
Annual total
Sun
4h
Weather score
32
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 71mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.3h per day, enough for a balanced month.
Map
Weather map
Compare Rotterdam, Netherlands with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July21°C average high
July is one of Rotterdam'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
July71mm average rain
July is wetter than Rotterdam's yearly average, so flexible plans matter more.
Driest monthsJanuary to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July6.3 hours average sun
July is one of Rotterdam's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
July52 weather score
July is one of Rotterdam'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.
