April weather forecastCastroville, CA
April
Weather in April
April, like March, in Castroville, California, is another comfortable spring month, with an average temperature ranging between min 45.1°F (7.3°C) and max 64°F (17.8°C).Temperature
Castroville's shift from March to April is accompanied by an average high-temperature of a still comfortable 64°F (17.8°C), a slight deviation from 61.3°F (16.3°C). During the month of April, Castroville's nighttime temperature lowers to an average of 45.1°F (7.3°C).Humidity
In Castroville, the average relative humidity in April is 73%.Rainfall
In Castroville, in April, it is raining for 6.9 days, with typically 0.47" (12mm) of accumulated precipitation. Throughout the year, there are 53.1 rainfall days, and 5.35" (136mm) of precipitation is accumulated.Daylight
The average length of the day in April is 13h and 10min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:29 pm. On the last day of April, in Castroville, sunrise is at 6:13 am and sunset at 7:55 pm PDT.
Sunshine
In Castroville, the average sunshine in April is 10.4h.UV index
The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 4 in April suggests the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Castroville, CA
- Average high temperature in April: 64°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (57.6°F).
- Average low temperature in April: 45.1°F
The month with the highest average low temperature is September (54.5°F).
The coldest month (with the lowest average low temperature) is December (43.7°F).
Average pressure in April
Castroville, CA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in April
Castroville, CA
- Average wind speed in April: 6.3mph
The windiest month (with the highest average wind speed) is May (6.5mph).
The calmest month (with the lowest average wind speed) is September (4.9mph).
Average humidity in April
Castroville, CA
- Average humidity in April: 73%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (66%).
Average rainfall in April
Castroville, CA
- Average rainfall in April: 0.47"
The wettest month (with the highest rainfall) is December (1.14").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in April
Castroville, CA
- Average rainfall days in April: 6.9 days
The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is August (0.7 days).
Average daylight in April /
Average sunshine in April
Castroville, CA
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in April: 10h and 24min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in April
Castroville, CA
- Average sunshine days in April: 22.7 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (20 days).
Average UV index in April
Castroville, CA
- Average UV index in April: 4
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in April
Castroville, CA
- Average cloud cover in April: 27
The month with the most cloud cover is March (Cloud cover 33).
The months with the least cloud cover are July and September (Cloud cover 10).
Average visibility in April
Castroville, 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).
