April weather forecastMartinez, CA
April
Weather in April
April is an agreeable spring month in Martinez, California, with temperature in the range of an average high of 68.5°F (20.3°C) and an average low of 46.9°F (8.3°C).Temperature
The onset of April marks a slight increase in the average high-temperature, moving from a comfortable 63.1°F (17.3°C) in March to a pleasant 68.5°F (20.3°C). Martinez observes a substantial disparity between daytime high and the average low-temperature of 46.9°F (8.3°C) during April nights.Humidity
In Martinez, California, the average relative humidity in April is 68%.Rainfall
In Martinez, in April, it is raining for 4.6 days, with typically 0.28" (7mm) of accumulated precipitation. In Martinez, during the entire year, the rain falls for 48.9 days and collects up to 4.96" (126mm) of precipitation.Daylight
In Martinez, the average length of the day in April is 13h and 13min.On the first day of April, sunrise is at 6:52 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 7:58 pm PDT.
Sunshine
In Martinez, the average sunshine in April is 10.3h.UV index
In April, the average daily maximum UV index in Martinez is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 5 in April leads to these guidelines:
Act with care - The need to guard against sun damage is communicated. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Martinez, CA
- Average high temperature in April: 68.5°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in April: 46.9°F
The month with the highest average low temperature is September (57.6°F).
The coldest months (with the lowest average low temperature) are January and December (42.3°F).
Average pressure in April
Martinez, CA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Martinez, CA
- Average wind speed in April: 6.5mph
The windiest month (with the highest average wind speed) is May (7.4mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity in April
Martinez, CA
- Average humidity in April: 68%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are September and October (56%).
Average rainfall in April
Martinez, CA
- Average rainfall in April: 0.28"
The wettest month (with the highest rainfall) is February (0.98").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in April
Martinez, CA
- Average rainfall days in April: 4.6 days
The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is August (1 days).
Average daylight in April /
Average sunshine in April
Martinez, CA
- Average daylight in April: 13h and 12min
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 36min).
- Average sunshine in April: 10h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in April
Martinez, CA
- Average sunshine days in April: 25.3 days
The month with the most sunshine days is July (29 days).
The months with the least sunshine days are February and March (22.1 days).
Average UV index in April
Martinez, CA
- Average UV index in April: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in April
Martinez, CA
- Average cloud cover in April: 27
The months with the most cloud cover are March and December (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in April
Martinez, 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).
