Eureka (CA)
August
Weather in Eureka, California for August 2026
Your guide to Eureka weather in August - trends and predictions
In general, the average temperature in Eureka at the beginning of August is 16.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 17 °C by the end of August.
With an average of 2 rainy days, Eureka experiences minimal rainfall in August.
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Temperatures
Rain 🌧️
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29
Dry days
2
Rainy days
0
Snow days
16°/12°
Temperatures
13 km/h
Avg max wind
87 %
Avg humidity
Eureka Weather August
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Temperatures trend during August in Eureka
See the weather trend as well as the moving average line
August weather in Eureka day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Patchy rain possible | 17° /12° | 0.1 mm | 4 | |
| Aug. 2 | Patchy rain possible | 16° /12° | 0.2 mm | 4 | |
| Aug. 3 |  Fog | 15° /12° | 0.1 mm | 4 | |
| Aug. 4 | Patchy rain possible | 16° /12° | 0.1 mm | 4 | |
| Aug. 5 | Patchy rain possible | 16° /12° | 0.2 mm | 4 | |
| Aug. 6 | Patchy rain possible | 17° /12° | 0.1 mm | 4 | |
| Aug. 7 | Patchy rain possible | 17° /12° | 0 mm | 4 | |
| Aug. 8 | Patchy rain possible | 20° /12° | 0.1 mm | 5 | |
| Aug. 9 | Patchy rain possible | 19° /12° | 0.2 mm | 5 | |
| Aug. 10 | Patchy rain possible | 18° /13° | 0.2 mm | 5 | |
| Aug. 11 | Patchy rain possible | 17° /12° | 0.1 mm | 5 | |
| Aug. 12 | Patchy rain possible | 16° /11° | 0.1 mm | 4 | |
| Aug. 13 |  Partly cloudy | 16° /10° | 0 mm | 5 | |
| Aug. 14 | Mist | 16° /11° | 0 mm | 4 | |
| Aug. 15 | Patchy rain possible | 16° /11° | 0 mm | 4 | |
| Aug. 16 | Patchy rain possible | 17° /12° | 0 mm | 4 | |
| Aug. 17 |  Patchy light rain with thunder | 15° /12° | 5.1 mm | 4 | |
| Aug. 18 | Patchy rain possible | 17° /11° | 0.1 mm | 4 | |
| Aug. 19 |  Sunny | 15° /10° | 0 mm | 4 | |
| Aug. 20 | Sunny | 18° /11° | 0 mm | 5 | |
| Aug. 21 |  Overcast | 16° /12° | 0 mm | 4 | |
| Aug. 22 | Patchy rain possible | 16° /12° | 0.2 mm | 4 | |
| Aug. 23 | Light rain shower | 17° /11° | 1.5 mm | 4 | |
| Aug. 24 | Partly cloudy | 16° /11° | 0 mm | 5 | |
| Aug. 25 | Patchy rain possible | 18° /11° | 0 mm | 4 | |
| Aug. 26 | Patchy rain possible | 18° /12° | 0 mm | 4 | |
| Aug. 27 | Patchy rain possible | 17° /11° | 0 mm | 4 | |
| Aug. 28 | Sunny | 16° /12° | 0 mm | 4 | |
| Aug. 29 | Patchy rain possible | 17° /12° | 0 mm | 4 | |
| Aug. 30 | Patchy rain possible | 17° /11° | 0 mm | 4 | |
| Aug. 31 | Patchy rain possible | 16° /11° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Eureka in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Eureka forecast closer to your planned date for the most up-to-date weather information.
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Eureka in August - FAQ
What are the expected maximum and minimum temperatures in Eureka during August?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Eureka during August?
Rainfall in Eureka during August is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 2 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Eureka during August?
The average wind speed in Eureka during August is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Eureka
Explore the daily rainfall trends and prepare for Eurekas August weather 💧
Typically, Eureka has 2 rainy days in August with a total of 8.8 mm of rainfall.
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