Is Seattle hot in May?
Days are typically mild at 18.8°C, while nights average 9.6°C.
United States · 1991–2020 normal
Seattle in
May.
Typical May weather in Seattle: 18.8°C by day, 9.6°C at night, 48 mm of rain over 8.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high18.8°C
Typical low9.6°C
Rain48 mm
Wet days8.2
In the year-round weather comparison, May scores 67 out of 100 (July leads the year at 96). Daylight is calculated as 15 h 06 from latitude 47.61°.
May at a glance
What is Seattle like in May?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 48 mm across about 8 wet days.
How much daylight is there?
There are about 15 h 06 between sunrise and sunset at mid-month, calculated from the place latitude.
Is May a good time to visit?
May ranks 5 of 12 in our weather comparison; July ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5809844
- NOAA station
- USW00024234 · SEATTLE BOEING FLD
- Station distance
- 6.9 km from the place centre
- Coverage
- Good coverage · 22 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Seattle is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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