United StatesThe weather in May in Eureka
It's cool to moderate in May in Eureka with an average temperature of 15°C. Temperatures this month range from a low of 14°C to a high of 16°C. At night, you can expect temperatures between 7°C and 11°C.
Looking for sun and warm weather? May isn’t a good month to be in Eureka. The temperatures are too low for a warm stay this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Eureka, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 28°C in 2023, Eureka reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 9°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 2°C to a highest value of 13°C.
Water temperature
The water temperature at Eureka is 14°C this month. This is too cold to swim without protective gear.
Rainfall amount
In May, there is an average of 72 mm of precipitation, spread over 11 days. The wind speed is around 4 Bft, mostly coming from the Northwest.
Daily weather in May for Eureka
Click on any day in May to get detailed info about the usual weather on that day in Eureka. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Eureka | New York | |
|---|---|---|
| Average temperature | 15°C | 22°C |
| Max. temperature | 16°C | 28°C |
| Min. temperature | 7°C | -5°C |
| Total precipitation | 72 mm | 105 mm |
| Rainy days | 11 days | 14 days |
Start of May
The month of May starts in Eureka with cool temps, averaging around 16°C during the day and nights around 9°C.
Mid May
By mid-May, daytime temps drop to around 15°C, with nights around 10°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of May
By the end of May, the average daytime temperature in Eureka is around 16°C, while nighttime temps are about 10°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Eureka for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Eureka, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Eureka
Temperature in May in Eureka over the years
Precipitation charts
These charts show the average amount of precipitation in May in Eureka, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Eureka
Total precipitation in May in Eureka over the years
Daily UV index in May in Eureka
This chart shows the average daily UV index in May in Eureka, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May 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.