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Eureka

Travel Info

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Eureka Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Eureka year round climate

  • Spring (March–May): Average 47–52°F, cool and rainy, especially in March. Common activities: Hiking (bring rain gear), enjoying coastal scenery. Suggested clothing: Waterproof jacket, warm clothing, long pants.
  • Summer (June–August): Average 55–60°F, mild and dry. Common activities: Camping, beach activities, exploring Redwood National Park. Suggested clothing: Light and breathable clothing, comfortable shoes.
  • Autumn (September–November): Average 54–58°F, comfortable, rainfall gradually increases, especially in November. Common activities: Enjoying autumn scenery, outdoor walks. Suggested clothing: Light jacket, long-sleeved shirt.
  • Winter (December–February): Average 46–49°F, cold and humid, heavy rainfall, especially in December. Common activities: Indoor activities, museum visits. Suggested clothing: Thick jacket, warm clothing, waterproof boots.

Eureka climatological average

Annual average temperature: approx. 52.7°F / Annual rainfall: approx. 1087 mm / Summer humidity: 70%–80% / Rainiest month: December

Eureka monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
49.1°F
183
February
46.8°F
128
March
47.7°F
154
April
49.3°F
71.3
May
52.9°F
57
June
55.9°F
21.7
July
58.6°F
7
August
60.1°F
13.5
September
58.3°F
20
October
54.7°F
39.7
November
49.5°F
170
December
49.1°F
222

Eureka weather for the next seven days

6/7
Sunday
Sunny
58.3°F/48°F
6/8
Monday
Moderate rain
55.1°F/48.3°F
6/9
Tuesday
Patchy rain nearby
57.8°F/49.4°F
6/10
Wednesday
Sunny
58.4°F/45.7°F
6/11
Thursday
Sunny
61.5°F/47.7°F
6/12
Friday
Sunny
63.2°F/49°F
6/13
Saturday
Sunny
61.1°F/49.3°F

Eureka Frequently Asked Questions and Useful Information for Travel

What is the best time to visit?

The best time to visit Eureka is usually during the summer, when the weather is milder and suitable for a variety of outdoor activities.

Which attractions are must-visit?

Must-visit attractions include the Dalton Highway, Aurora Train, Chena Hot Springs, and more. These attractions not only provide rich natural experiences, but also provide opportunities to gain insight into Alaskan culture.