Mild
Average highs are around 22°C, so days are mild rather than hot.
Weather Guide
Bellingham, Washington, United States Average Monthly Weather
Weather score28Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 14°C, sunshine averages 5h per day, and rainfall totals about 1122mm. Sea temperatures average 11°C across the year.
Annual weather
Annual averages
Temp
14°C
Rain
1122mm
Annual total
Sun
5h
Sea
11°C
Weather score
28
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 44mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.2h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Weather map
Compare Bellingham, Washington, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August22°C average high
August is one of Bellingham'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
August44mm average rain
August is one of Bellingham's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsMay to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August8.2 hours average sun
August is brighter than Bellingham's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August15°C average sea
August is one of Bellingham's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to September
Sea temperatures are usually near 13°C in this stretch, so swimming comfort is at its strongest.
Weather score
August53 weather score
August is one of Bellingham's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
