Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The arrival of April in Santa Rosa brings an average high-temperature of a comfortable 64.9°F (18.3°C), subtly diverging from March's 60.4°F (15.8°C). Santa Rosa, during the month of April, experiences an average low-temperature of 45.5°F (7.5°C).Humidity
The average relative humidity in April in Santa Rosa, California, is 72%.Rainfall
In April, in Santa Rosa, the rain falls for 7 days. Throughout April, 0.55" (14mm) of precipitation is accumulated. In Santa Rosa, during the entire year, the rain falls for 72.8 days and collects up to 12.01" (305mm) of precipitation.Daylight
In April, the average length of the day is 13h and 14min.On the first day of April in Santa Rosa, sunrise is at 6:54 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:02 pm PDT.
Sunshine
In April, the average sunshine is 10.1h.UV index
The average daily maximum UV index in April in Santa Rosa, California, is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 5 in April leads to these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Santa Rosa in April?
What is the average humidity in April in Santa Rosa?
How many days does it rain in April in Santa Rosa?
How many hours of daylight does Santa Rosa have in April?
What time are sunrise and sunset in April in Santa Rosa?
How long on average sun shines in April in Santa Rosa?
How high is the UV index in April in Santa Rosa?
Average temperature in April
Santa Rosa, CA
- Average high temperature in April: 64.9°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 April: 45.5°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 April
Santa Rosa, CA
- Average pressure in April: 30.03"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 April
Santa Rosa, CA
- Average wind speed in April: 7mph
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 April
Santa Rosa, CA
- Average humidity in April: 72%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (63%).
Average rainfall in April
Santa Rosa, CA
- Average rainfall in April: 0.55"
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 April
Santa Rosa, CA
- Average rainfall days in April: 7 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 April /
Average sunshine in April
Santa Rosa, CA
- Average daylight in April: 13h and 1min
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 April: 10h and 1min
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 April
Santa Rosa, CA
- Average sunshine days in April: 21.8 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 April
Santa Rosa, CA
- Average UV index in April: 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 April
Santa Rosa, CA
- Average cloud cover in April: 29
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 April
Santa Rosa, CA
- Average visibility in April: 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).
Santa Rosa, California, USA
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