What’s the climate like in Eureka?
The current climate of Eureka features average monthly temperatures ranging from highs of 19°C during the day to lows of 13°C. The average yearly temperature is around 16°C. At night, temperatures in the colder months average around 4°C and in the warmer months around 12°C.
The highest temperature recorded in Eureka in recent years was 33°C in September 2017. The lowest daytime temperature recorded was 2°C in February 2023.
On average, Eureka receives 1362 mm of precipitation each year. For comparison, London gets 701 mm of precipitation annually.
Best time to visit Eureka?
The best time to visit Eureka for sunny weather is July through October. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Eureka. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Climate Table of Eureka
The climate table of Eureka shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 13 | 13 | 14 | 14 | 15 | 17 | 18 | 19 | 19 | 18 | 15 | 13 |
| Temp. min (°C) | 5 | 5 | 6 | 7 | 9 | 11 | 12 | 13 | 11 | 8 | 7 | 5 |
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| Precipitation (mm) | 270 | 142 | 226 | 101 | 64 | 18 | 3,2 | 8,9 | 49 | 92 | 103 | 284 |
| UV Index | 4 | 5 | 4 | 6 | 7 | 8 | 6 | 8 | 5 | 5 | 3 | 4 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 16°C
- Highest temperature: 19°C in August and September
- Lowest temperature: 13°C in January, February and December
- Precipitation: 1362 mm per year, averaging 114 mm per month
- Driest months: 3,2 mm in July, 8,9 mm in August and 18 mm in June
- Wettest months: 284 mm in December, 270 mm in January and 226 mm in March
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Table of Contents
Average Temperature per Month in Eureka
This graph shows the average maximum temperatures per month in Eureka, California. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Eureka
This graph shows how much precipitation Eureka, California, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Eureka
This graph shows the average UV index per month in Eureka, California. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Eureka
This graph shows the average yearly temperature in Eureka, California. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Eureka
This chart shows the total yearly precipitation in Eureka, California, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Eureka
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Average Weather in Eureka by Month
Click on a month below to see detailed weather info for Eureka. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
