Eureka

What is the climate like in Eureka?

The best time to visit Eureka is typically June – September, with trip comfort peaking in August (7.5/10). Eureka is warmest in September, when daily highs average 62°F (17°C), and coolest in February, when lows fall to about 46°F (8°C). The wettest month is typically January and the driest is July; the year sees roughly 51 in (1288 mm) of precipitation.

• Best time to visitJune – September — comfort peaks in August (7.5/10)
• Warmest monthSeptember — average high 62°F (17°C)
• Coolest monthFebruary — average low 46°F (8°C)
• Wettest monthJanuary (9.6 in (244 mm))
• Driest monthJuly (0.4 in (9 mm))
• Annual precipitation51 in (1288 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromEureka Wfo Woodley Is, 1 km away (1941-2026)