July weather forecastSanta Rosa, CA
July
Weather in July
July in Santa Rosa, stepping into the depth of summer, records the highest temperatures, reaching up to 79.3°F (26.3°C). This hot month showcases declining rainfall and less cloud cover compared to the preceding June, thereby cementing the grip of the summer season. As the UV index remains constant, the strength of the sun is sustained. The wind speed, meanwhile, shows a decline, adding to the overall calmness of the weather. Longer days and a high amount of sunshine characterize Santa Rosa's summer at its peak.Temperature
A minor adjustment in Santa Rosa's average high-temperature is noted with the start of July, touching a still warm 79.3°F (26.3°C) from June's 76.3°F (24.6°C). Santa Rosa's average nighttime temperatures present a clear contrast to its daytime highs, measured at a fresh 54.1°F (12.3°C) in July.Humidity
In July, the average relative humidity in Santa Rosa is 66%.Rainfall
The months with the least rainfall in Santa Rosa are July and August Rain falls for 1.5 days and accumulates 0.04" (1mm) of rain.Daylight
In July, the average length of the day in Santa Rosa is 14h and 32min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:38 pm. On the last day of July, sunrise is at 6:12 am and sunset at 8:21 pm PDT.
Sunshine
July has the most sunshine of the year, with an average of 11.9h of sunshine.UV index
In Santa Rosa, the average daily maximum UV index in July is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In July, a daily UV index of 5 turns into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Santa Rosa, CA
- Average high temperature in July: 79.3°F
The warmest month (with the highest average high temperature) is August (79.7°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in July: 54.1°F
The months with the highest average low temperature are August and September (54.7°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in July
Santa Rosa, CA
- Average pressure in July: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in July
Santa Rosa, CA
- Average wind speed in July: 5.5mph
The windiest month (with the highest average wind speed) is May (7.1mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity in July
Santa Rosa, CA
- Average humidity in July: 66%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (63%).
Average rainfall in July
Santa Rosa, CA
- Average rainfall in July: 0.04"
The wettest month (with the highest rainfall) is February (2.64").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in July
Santa Rosa, CA
- Average rainfall days in July: 1.5 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (0.8 days).
Average daylight in July /
Average sunshine in July
Santa Rosa, CA
- Average daylight in July: 14h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in July: 11h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in July
Santa Rosa, CA
- Average sunshine days in July: 27.2 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is March (17.1 days).
Average UV index in July
Santa Rosa, CA
- Average UV index in July: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in July
Santa Rosa, CA
- Average cloud cover in July: 9
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in July
Santa Rosa, CA
- Average visibility in July: 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).
