Eureka (CA)
August
Weather in Eureka, California for August 2025
Your guide to Eureka weather in August - trends and predictions
In general, the average temperature in Eureka at the beginning of August is 17.7 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 18 °F 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
17°/11°
Temperatures
13 km/h
Avg max wind
82 %
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 | 19° /12° | 0.2 mm | 4 | |
| Aug. 2 | Patchy rain possible | 18° /12° | 0.4 mm | 4 | |
| Aug. 3 |  Fog | 17° /12° | 0.2 mm | 4 | |
| Aug. 4 | Patchy rain possible | 18° /12° | 0.3 mm | 4 | |
| Aug. 5 | Patchy rain possible | 17° /12° | 0.4 mm | 4 | |
| Aug. 6 | Patchy rain possible | 17° /11° | 0.1 mm | 4 | |
| Aug. 7 | Patchy rain possible | 18° /11° | 0 mm | 4 | |
| Aug. 8 | Patchy rain possible | 18° /11° | 0.3 mm | 4 | |
| Aug. 9 | Patchy rain possible | 17° /11° | 0.4 mm | 4 | |
| Aug. 10 | Patchy rain possible | 16° /11° | 0.5 mm | 4 | |
| Aug. 11 | Patchy rain possible | 16° /11° | 0.2 mm | 4 | |
| Aug. 12 | Patchy rain possible | 15° /10° | 0.2 mm | 4 | |
| Aug. 13 |  Partly cloudy | 17° /9° | 0 mm | 5 | |
| Aug. 14 | Mist | 17° /11° | 0.1 mm | 4 | |
| Aug. 15 | Patchy rain possible | 16° /10° | 0.1 mm | 4 | |
| Aug. 16 | Patchy rain possible | 17° /11° | 0 mm | 4 | |
| Aug. 17 |  Patchy light rain with thunder | 16° /11° | 10.3 mm | 4 | |
| Aug. 18 | Patchy rain possible | 18° /11° | 0.1 mm | 4 | |
| Aug. 19 |  Sunny | 17° /10° | 0 mm | 5 | |
| Aug. 20 | Sunny | 18° /11° | 0 mm | 5 | |
| Aug. 21 |  Overcast | 17° /11° | 0 mm | 4 | |
| Aug. 22 | Patchy rain possible | 16° /11° | 0.3 mm | 4 | |
| Aug. 23 | Light rain shower | 16° /10° | 3 mm | 4 | |
| Aug. 24 | Partly cloudy | 16° /10° | 0 mm | 5 | |
| Aug. 25 | Patchy rain possible | 17° /10° | 0 mm | 4 | |
| Aug. 26 | Patchy rain possible | 18° /11° | 0.1 mm | 4 | |
| Aug. 27 | Patchy rain possible | 18° /11° | 0 mm | 4 | |
| Aug. 28 | Sunny | 18° /12° | 0 mm | 5 | |
| Aug. 29 | Patchy rain possible | 19° /13° | 0.1 mm | 4 | |
| Aug. 30 | Patchy rain possible | 18° /11° | 0 mm | 4 | |
| Aug. 31 | Patchy rain possible | 18° /11° | 0.1 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 17° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Eureka during August?
Expect minimal rainfall in Eureka during August, with a total of 17.6 mm over approximately 2 days. This minimal precipitation is unlikely to significantly impact plans.
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 💧
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