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 shift into April reveals an average high-temperature of a still comfortable 66.7°F (19.3°C), closely mirroring March's climate. During the month of April, Port Costa experiences a steady low-temperature average of 46.8°F (8.2°C).Humidity
In Port Costa, the average relative humidity in April is 69%.Rainfall
In Port Costa, in April, during 5.8 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. In Port Costa, California, during the entire year, the rain falls for 56.9 days and collects up to 4.88" (124mm) of precipitation.Daylight
In April, the average length of the day in Port Costa is 13h and 13min.On the first day of April in Port Costa, 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 7:59 pm PDT.
Sunshine
In April, the average sunshine is 10.3h.UV index
In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 5 in April translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What is the temperature in April in Port Costa?
What is the average humidity in April in Port Costa?
How much does it rain in Port Costa in April?
What is the average length of the day in April in Port Costa?
When are sunrise and sunset in April in Port Costa?
How many hours of sunshine does Port Costa have in April?
What is the UV index reading in April in Port Costa?
Average temperature in April
Port Costa, CA
- Average high temperature in April: 66.7°F
The warmest months (with the highest average high temperature) are July and September (80.1°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in April: 46.8°F
The month with the highest average low temperature is August (56.5°F).
The coldest month (with the lowest average low temperature) is January (43°F).
Average pressure in April
Port Costa, 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
Port Costa, CA
- Average wind speed in April: 6.5mph
The windiest month (with the highest average wind speed) is May (7.1mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).
Average humidity in April
Port Costa, CA
- Average humidity in April: 69%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are September and October (60%).
Average rainfall in April
Port Costa, CA
- Average rainfall in April: 0.2"
The wettest month (with the highest rainfall) is February (1.14").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in April
Port Costa, CA
- Average rainfall days in April: 5.8 days
The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is August (0.9 days).
Average daylight in April /
Average sunshine in April
Port Costa, 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 36min).
- Average sunshine in April: 10h and 2min
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
Port Costa, CA
- Average sunshine days in April: 22.8 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is March (18.8 days).
Average UV index in April
Port Costa, 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
Port Costa, CA
- Average cloud cover in April: 27
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in April
Port Costa, 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).
Port Costa, California, USA
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