July weather forecast
Eureka, CA

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The Lost Fisherman
The Lost Fisherman's Memorial in scenic surroundings of Eureka, California

Weather in July

July, the same as June, is another comfortable summer month in Eureka, California, with an average temperature fluctuating between 52.3°F (11.3°C) and 67.6°F (19.8°C).

Temperature

Eureka observes a minor difference in average high-temperatures between June's 63.5°F (17.5°C) and July's 67.6°F (19.8°C). Throughout July, the nighttime temperature averages to a fresh 52.3°F (11.3°C).

Humidity

The average relative humidity in July is 80%.

Rainfall

July is the month with the least rainfall. Rain falls for 2.3 days and accumulates 0.08" (2mm) of precipitation.

Snowfall

January, March through December are months without snowfall in Eureka.

Daylight

In Eureka, the average length of the day in July is 14h and 46min.
On the first day of the month, sunrise is at 5:49 am and sunset at 8:52 pm. On the last day of July, sunrise is at 6:13 am and sunset at 8:32 pm PDT.

Sunshine

July and August, with an average of 11.6h of sunshine, are months with the most sunshine.

UV index

The month with the highest UV index is July, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 5 in July converts into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Around midday, solar radiation is most harmful; hence, exposure should be limited. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Eureka in July?

Eureka in July has an average high-temperature of 67.6°F (19.8°C) and an average low-temperature of 52.3°F (11.3°C).

What is the average humidity in July?

In Eureka, the average relative humidity in July is 80%.

What is the driest month?

July is the month with the least rainfall. Rain falls for 2.3 days and accumulates 0.08" (2mm) of precipitation.

How many days does it rain in July?

In July, the rain falls for 2.3 days. Throughout July, 0.08" (2mm) of precipitation is accumulated.

When it does not snow?

In Eureka, snow does not fall in January, March through December.

How many hours of daylight does Eureka have in July?

The average day length in July is 14h and 46min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:49 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:32 pm PDT.

What are the months with the most sunshine?

The months with the most sunshine are July and August, with an average of 11.6h of sunshine.

How long on average sun shines in July?

In July, the average sunshine duration in Eureka is 11.6h.

What is the month with the highest UV index in Eureka?

July is the month with the highest UV index, with an average maximum UV index of 5.

What is the UV index intensity in July?

In Eureka, the average daily maximum UV index in July is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Eureka, CA

Average temperature in July - Eureka, CA
  • Average high temperature in July: 67.6°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 July: 52.3°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 July
Eureka, CA

Average pressure in July - Eureka, CA
  • Average pressure in July: 29.98"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 July
Eureka, CA

Average wind speed in July - Eureka, CA
  • Average wind speed in July: 7.1mph

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 July
Eureka, CA

Average humidity in July - Eureka, CA
  • Average humidity in July: 80%

The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is October (76%).

Average rainfall in July
Eureka, CA

Average rainfall in July - Eureka, CA
  • Average rainfall in July: 0.08"

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 July
Eureka, CA

Average rainfall days in July - Eureka, CA
  • Average rainfall days in July: 2.3 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 July
Eureka, CA

Average snowfall in July - Eureka, CA
  • Average snowfall in July: 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 July
Eureka, CA

Average snowfall days in July - Eureka, CA
  • Average snowfall days in July: 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 July /
Average sunshine in July
Eureka, CA

Average daylight in July / Average sunshine in July - Eureka, CA
  • Average daylight in July: 14h and 5min

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 July: 11h and 4min

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 July
Eureka, CA

Average sunshine days in July - Eureka, CA
  • Average sunshine days in July: 27.7 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 July
Eureka, CA

Average UV index in July - Eureka, CA
  • Average UV index in July: 5

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 July
Eureka, CA

Average cloud cover in July - Eureka, CA
  • Average cloud cover in July: 16

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 July
Eureka, CA

Average visibility in July - Eureka, CA
  • Average visibility in July: 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).

Eureka, California, USA

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