Cool
Average highs are around 14°C, so pack for cooler days.
Weather Guide
Lerwick, United Kingdom Average Monthly Weather
Weather score17Poor annual avg
Best months: June, July, August
Across the year, average daytime temperatures are around 9°C, sunshine averages 2.8h per day, and rainfall totals about 1191mm. Sea temperatures average 10°C across the year.
Annual weather
Annual averages
Temp
9°C
Rain
1191mm
Annual total
Sun
2.8h
Sea
10°C
Weather score
17
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 78mm, 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
Weather map
Compare Lerwick, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August14°C average high
August is one of Lerwick's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August78mm average rain
August sits on the drier side of Lerwick's year, which helps with sightseeing and transfers.
Driest monthsApril to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August4 hours average sun
August is brighter than Lerwick's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August13°C average sea
August is one of Lerwick's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 12°C in this stretch, so swimming comfort is at its strongest.
Weather score
August23 weather score
August is one of Lerwick's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsApril to August
These months have the strongest weather score in the monthly averages.