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Seattle in June: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Seattle in June is climatically well suited to city breaks and active holidays and hiking. The average daily high is around 20 °C, and the sea is about 11 °C. With about 11 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
58/100 · #4
Warmth
#4
Dryness
#4
Sun
#2
Sea warmth
#4
Published best categories: City break, Active
Seattle · JunePhoto: Daniel Schwen · CC BY-SA 4.0Climate facts
- Average high
- 20 °C
- Average low
- 10 °C
- Sea
- 11 °C
- Rainy days (est.)
- 11 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 80 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| May | 17 | 8 | 13 | 70 | 6.5 | 80 | 0.6 | 10 | 48 |
| June (selected) | 20 | 10 | 11 | 55 | 7.1 | 80 | 0.6 | 11 | 58 |
| July | 23 | 13 | 5 | 24 | 7.9 | 78 | 0.5 | 12 | 75 |
How do the previous and next months compare?
Baseline: June (58/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| May | -10 | -2.4 °C | -2.4 °C | +1.7 | +15.7 mm | -0.6 h | -0.1 % | +0.1 m/s | -1 °C |
| July | +17 | +3.4 °C | +2.5 °C | -6.5 | -31.1 mm | +0.8 h | -2.2 % | -0.1 m/s | +0.8 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Seattle in June?
The average daily high is around 20 °C, with an average daily low of about 10 °C.
Can you swim in Seattle in June?
The sea is about 11 °C (cold).
Does it rain a lot in Seattle in June?
The curated estimate is about 11 rainy days per month, not a directly measured long-term average. Total precipitation averages around 55 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Seattle?
By the climate score, July, August and September are the strongest months for Seattle. For a beach trip: July and August. June is not among them.