June weather forecastEureka, CA

June
Weather in June
June, the first month of the summer in Eureka, is an enjoyable month, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 63.5°F (17.5°C).Temperature
The introduction of June notes a subtle temperature variation to a comfortable 63.5°F (17.5°C) from May's 59.9°F (15.5°C). Eureka sees an average low-temperature of 49.6°F (9.8°C) during June.Humidity
In Eureka, the average relative humidity in June is 81%.Rainfall
In Eureka, in June, it is raining for 3.1 days, with typically 0.16" (4mm) of accumulated precipitation. Throughout the year, there are 77.3 rainfall days, and 8.58" (218mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Daylight
With an average of 15h and 6min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:46 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:52 pm PDT.
Sunshine
In Eureka, the average sunshine in June is 10.9h.UV index
In Eureka, the average daily maximum UV index in June is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: An average UV index of 4 in June transforms into this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Eureka, CA
- Average high temperature in June: 63.5°F
The warmest month (with the highest average high temperature) is August (68.4°F).
The months with the lowest average high temperature are February and December (52.9°F).
- Average low temperature in June: 49.6°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is February (42.4°F).
Average pressure in June
Eureka, CA
- Average pressure in June: 29.99"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in June
Eureka, CA
- Average wind speed in June: 8.6mph
The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in June
Eureka, CA
- Average humidity in June: 81%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is October (76%).
Average rainfall in June
Eureka, CA
- Average rainfall in June: 0.16"
The wettest month (with the highest rainfall) is December (1.73").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in June
Eureka, CA
- Average rainfall days in June: 3.1 days
The month with the highest number of rainy days is March (11.2 days).
The month with the least rainy days is August (1.7 days).
Average snowfall in June
Eureka, CA
- Average snowfall in June: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in June
Eureka, CA
- Average snowfall days in June: 0 days
The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in June /
Average sunshine in June
Eureka, CA
- Average daylight in June: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in June: 10h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in June
Eureka, CA
- Average sunshine days in June: 25.5 days
The month with the most sunshine days is July (27.7 days).
The month with the least sunshine days is March (17.9 days).
Average UV index in June
Eureka, CA
- Average UV index in June: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in June
Eureka, CA
- Average cloud cover in June: 24
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in June
Eureka, CA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).





