Late autumn · Weather & things to do
San Juan Island in November
The year's rain peaks now, with about 6.1 in (154 mm) falling in San Juan Island, alongside highs near 49°F (9°C) and lows of 43°F (6°C).
Our comfort score puts it mid-table at 44/100, 10th of 12.
- Avg high
- 49°F (9°C)
- Avg low
- 43°F (6°C)
- Rain
- 6.1 in (154 mm)
- Humidity
- 86%
- Cloud cover
- 79%
- Daylight
- ~8 h 55 min
- Comfort score
- 44/100 · Tough
What November feels like
Afternoons only reach about 49°F (9°C), so plan on a warm jacket.
After dark, temperatures fall to about 43°F (6°C).
Expect regular rain: about 6.1 in (154 mm) falls in the month.
Expect plenty of overcast days, with cloud cover near 79%.
Daylight is short, roughly 8 h 55 min mid-month, so start sightseeing early.
Plan around November
November sits mid-table; the best months are June – September.
- Start of the wettest three-month stretch (November – January), which brings about 17.2 in (438 mm) in total.
- Comfort slips from 64/100 in October to 44/100.
- Our Puget Sound Islands route recommends May – Sep, so November falls outside its suggested window.
What to pack for November
- Insulated jackethighs only 49°F
- Rain jacket and waterproof shoesfrequent rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in San Juan Island in November
With 6.1 in of rain, these picks lean toward food, drink and places with a roof, with outdoor options when the weather breaks.
Duck Soup
Long-running island restaurant using local produce and seafood.
Why now A sit-down stop to wait out showers in a month with 6.1 in of rain.
The Whale Museum
Small Friday Harbor museum on the Southern Resident orcas and local research.
Why now An indoor-leaning stop for a month with 6.1 in of rain.
San Juan Islands Sculpture Park
Over 100 sculptures along trails at Roche Harbor.
The Farm at Krystal Acres
Working alpaca farm in the island's west valley, with pastures to walk and a barn shop of alpaca-wool goods.
Lime Kiln Point State Park
Lighthouse shoreline known as one of the best places to see orcas from land.
Nearby in November
- Victoria in November~18 mi · highs 49°F, 6.1 in rain · similar daytime temperatures, about as wet
- Vancouver in November~52 mi · highs 46°F, 13.7 in rain · 1°C (2°F) cooler by day, wetter
- Olympic NP in November~57 mi · highs 35°F, 11.5 in rain or snow · 8°C (14°F) cooler by day, wetter
- Bainbridge Island in November~67 mi · highs 50°F, 7.4 in rain · similar daytime temperatures, wetter
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
San Juan Island in November: quick answers
Is November a good time to visit San Juan Island?
It's middling, scoring 44/100. The best months are June – September, at up to 95. Expect highs of 49°F (9°C) and 6.1 in (154 mm) of rain. Our Puget Sound Islands route recommends May – Sep, so November is outside its suggested window.
How cold is San Juan Island in November?
Average highs are 49°F (9°C) and average lows 43°F (6°C), making it the 4th-coldest month by daytime highs.
Does it rain a lot in San Juan Island in November?
Yes: about 6.1 in (154 mm) of rain falls across November on average, the wettest month of the year. The annual total is about 39.0 in (991 mm).
What should I pack for San Juan Island in November?
Bring insulated jacket (highs only 49°F), rain jacket and waterproof shoes (frequent rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on San Juan Island
Planning San Juan Island in November?
Share this November plan with your group, poll everyone on dates and keep the packing list in one place.