Climate almanac

Arcata

California, United States · 40.87°, -124.08°

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What is the climate like in Arcata?

The best time to visit Arcata is typically June – September, with trip comfort peaking in August (8.2/10). Arcata is warmest in August, when daily highs average 68°F (20°C), and coolest in February, when lows fall to about 40°F (5°C). The wettest month is typically January and the driest is July; the year sees roughly 54 in (1366 mm) of precipitation.

  • Best time to visitJune – September — comfort peaks in August (8.2/10)
  • Warmest monthAugust — average high 68°F (20°C)
  • Coolest monthFebruary — average low 40°F (5°C)
  • Wettest monthJanuary (10 in (257 mm))
  • Driest monthJuly (0.3 in (8 mm))
  • Annual precipitation54 in (1366 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromEureka Wfo Woodley Is, 9 km away (1941-2026)