Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Stepping into August, Holtville records an average high-temperature of a still scorching 106.5°F (41.4°C), almost consistent with July. Nightly temperatures in Holtville drop to an average low of 85.6°F (29.8°C) in August.Humidity
In Holtville, the average relative humidity in August is 25%.Rainfall
In Holtville, in August, during 4.1 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. In Holtville, during the entire year, the rain falls for 29.5 days and collects up to 2.99" (76mm) of precipitation.Daylight
The average length of the day in August in Holtville is 13h and 19min.On the first day of August, sunrise is at 5:55 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:07 pm PDT.
Sunshine
In Holtville, the average sunshine in August is 12.1h.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 9. A UV Index estimate of 8 to 10 represents a very high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 9 in August translates into these instructions:
Always prioritize safety measures. Rapid harm can befall unprotected skin and eyes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Directly after swimming or an outdoor workout, generously apply and reapply a broad-spectrum SPF 30+ sunscreen.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Holtville in August?
What is the average humidity in August in Holtville?
How much does it rain in Holtville in August?
What is the average length of the day in August in Holtville?
When are sunrise and sunset in August in Holtville?
How long on average sun shines in August in Holtville?
What are the months with the highest UV index in Holtville?
What is the UV index reading in August in Holtville?
Average temperature in August
Holtville, CA
- Average high temperature in August: 106.5°F
The warmest month (with the highest average high temperature) is July (107.2°F).
The month with the lowest average high temperature is December (67.3°F).
- Average low temperature in August: 85.6°F
The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is January (50°F).
Average pressure in August
Holtville, CA
- Average pressure in August: 29.8"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.77"Hg).
Average wind speed in August
Holtville, CA
- Average wind speed in August: 5.5mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest months (with the lowest average wind speed) are January and August (5.5mph).
Average humidity in August
Holtville, CA
- Average humidity in August: 25%
The month with the highest relative humidity is December (39%).
The month with the lowest relative humidity is June (21%).
Average rainfall in August
Holtville, CA
- Average rainfall in August: 0.43"
The wettest month (with the highest rainfall) is July (0.55").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in August
Holtville, CA
- Average rainfall days in August: 4.1 days
The month with the highest number of rainy days is July (6.3 days).
The month with the least rainy days is May (0.9 days).
Average daylight in August /
Average sunshine in August
Holtville, CA
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 12h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in August
Holtville, CA
- Average sunshine days in August: 23.2 days
The month with the most sunshine days is May (29.9 days).
The month with the least sunshine days is July (21.8 days).
Average UV index in August
Holtville, CA
- Average UV index in August: 9
The months with the highest UV index are July and August (UV index 9).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in August
Holtville, CA
- Average cloud cover in August: 7
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in August
Holtville, CA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Holtville, California, USA
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