Warm-summer Mediterranean climate
Climate Eureka - California
Annual high60ºF
Annual low46ºF
Precipitation40.33 inch
| Month | HighºF | LowºF | Precipinch |
|---|---|---|---|
| Jan | 56 | 41 | 6.50 |
| Feb | 56 | 42 | 5.63 |
| Mar | 57 | 43 | 5.30 |
| Apr | 58 | 44 | 3.32 |
| May | 60 | 47 | 1.78 |
| Jun | 62 | 50 | 0.75 |
| Jul | 63 | 52 | 0.18 |
| Aug | 64 | 53 | 0.31 |
| Sep | 64 | 50 | 0.59 |
| Oct | 62 | 47 | 2.24 |
| Nov | 58 | 44 | 5.61 |
| Dec | 55 | 41 | 8.12 |
- JanHigh 56ºFLow 41ºFPrecip 6.50 inch
- FebHigh 56ºFLow 42ºFPrecip 5.63 inch
- MarHigh 57ºFLow 43ºFPrecip 5.30 inch
- AprHigh 58ºFLow 44ºFPrecip 3.32 inch
- MayHigh 60ºFLow 47ºFPrecip 1.78 inch
- JunHigh 62ºFLow 50ºFPrecip 0.75 inch
- JulHigh 63ºFLow 52ºFPrecip 0.18 inch
- AugHigh 64ºFLow 53ºFPrecip 0.31 inch
- SepHigh 64ºFLow 50ºFPrecip 0.59 inch
- OctHigh 62ºFLow 47ºFPrecip 2.24 inch
- NovHigh 58ºFLow 44ºFPrecip 5.61 inch
- DecHigh 55ºFLow 41ºFPrecip 8.12 inch
Climate summary
What is the average weather in Eureka, California?
Eureka experiences a warm-summer climate with dry summers and wetter winters. Summers are cool and bring little rain, while winters are cool and fairly wet. Frequent rain or drizzle is common during the cooler season, contributing to the area's overall abundant annual precipitation.
Eureka weather averages
Annual high60ºF
Annual low46ºF
Precipitation40.33 inch
Daily normals Eureka - California - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 54.6 | 40.0 | 0.23 | 0.23 |
| Jan 2 | 54.6 | 40.1 | 0.46 | 0.46 |
| Jan 3 | 54.6 | 40.1 | 0.69 | 0.69 |
| Jan 4 | 54.7 | 40.2 | 0.92 | 0.92 |
| Jan 5 | 54.7 | 40.3 | 1.14 | 1.14 |
| Jan 6 | 54.8 | 40.3 | 1.37 | 1.37 |
| Jan 7 | 54.8 | 40.4 | 1.60 | 1.60 |
| Jan 8 | 54.9 | 40.5 | 1.83 | 1.83 |
| Jan 9 | 54.9 | 40.5 | 2.07 | 2.07 |
| Jan 10 | 54.9 | 40.6 | 2.30 | 2.30 |
| Jan 11 | 55.0 | 40.6 | 2.54 | 2.54 |
| Jan 12 | 55.0 | 40.7 | 2.76 | 2.76 |
| Jan 13 | 55.1 | 40.8 | 2.99 | 2.99 |
| Jan 14 | 55.1 | 40.8 | 3.20 | 3.20 |
| Jan 15 | 55.1 | 40.9 | 3.42 | 3.42 |
| Jan 16 | 55.2 | 40.9 | 3.63 | 3.63 |
| Jan 17 | 55.2 | 41.0 | 3.84 | 3.84 |
| Jan 18 | 55.2 | 41.0 | 4.05 | 4.05 |
| Jan 19 | 55.3 | 41.0 | 4.26 | 4.26 |
| Jan 20 | 55.3 | 41.1 | 4.47 | 4.47 |
| Jan 21 | 55.3 | 41.1 | 4.68 | 4.68 |
| Jan 22 | 55.3 | 41.1 | 4.88 | 4.88 |
| Jan 23 | 55.3 | 41.1 | 5.09 | 5.09 |
| Jan 24 | 55.4 | 41.2 | 5.29 | 5.29 |
| Jan 25 | 55.4 | 41.2 | 5.49 | 5.49 |
| Jan 26 | 55.4 | 41.2 | 5.69 | 5.69 |
| Jan 27 | 55.4 | 41.2 | 5.89 | 5.89 |
| Jan 28 | 55.4 | 41.2 | 6.09 | 6.09 |
| Jan 29 | 55.4 | 41.2 | 6.28 | 6.28 |
| Jan 30 | 55.4 | 41.2 | 6.47 | 6.47 |
| Jan 31 | 55.4 | 41.2 | 6.67 | 6.67 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Eureka - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 61.0 | 52.0 | 0.00 |
| Oct 2 | 61.0 | 50.0 | 0.00 |
| Oct 3 | 57.9 | 51.1 | 0.01 |
| Oct 4 | – | – | – |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | 60.1 | 50.0 | 0.00 |
| Oct 8 | 60.1 | 50.0 | 0.01 |
| Oct 9 | 61.0 | 50.0 | 0.01 |
| Oct 10 | 57.9 | 48.0 | 0.00 |
| Oct 11 | 57.0 | 39.9 | 0.00 |
| Oct 12 | 60.1 | 39.0 | 0.00 |
| Oct 13 | 62.1 | 39.9 | 0.00 |
| Oct 14 | 62.1 | 41.0 | 0.00 |
| Oct 15 | 73.0 | 45.0 | 0.00 |
| Oct 16 | 63.0 | 45.0 | 0.00 |
| Oct 17 | – | – | – |
| Oct 18 | – | – | – |
| Oct 19 | – | – | – |
| Oct 20 | 62.1 | 46.9 | 0.00 |
| Oct 21 | 59.0 | 46.0 | 0.02 |
| Oct 22 | 55.0 | 52.0 | 0.66 |
| Oct 23 | 57.9 | 43.0 | 0.00 |
| Oct 24 | 57.9 | 39.0 | 0.00 |
| Oct 25 | 61.0 | 43.0 | 0.00 |
| Oct 26 | 60.1 | 48.0 | 0.32 |
| Oct 27 | 57.9 | 43.0 | 0.26 |
| Oct 28 | – | – | – |
| Oct 29 | – | – | – |
| Oct 30 | – | – | – |
| Oct 31 | – | – | – |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature73.0ºF · Oct 15
- Lowest max temperature55.0ºF · Oct 22
- Highest min temperature52.0ºF · Oct 1
- Lowest min temperature39.0ºF · Oct 12
Geo Eureka - California
Location
- Country
- United States
- State
- California
- County
- Humboldt
- City
- Eureka
- Zip Code
- 95501
- Elevation
- 7 ft
- Longitude
- -124.11
- Latitude
- 40.80
- ICAO
- –
- IATA
- –