April weather forecast
Bethel Island, CA

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Weather in April

April is a pleasant spring month in Bethel Island, California, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 46.6°F (8.1°C).

Temperature

With the transition into April, Bethel Island experiences a subtle uplift in average high-temperatures, adjusting from a refreshing 63.5°F (17.5°C) in March to an agreeable 69.4°F (20.8°C). Despite higher daytime temperatures, nighttime averages fall to a frosty 46.6°F (8.1°C) in April.

Humidity

The average relative humidity in April in Bethel Island, California, is 66%.

Rainfall

In Bethel Island, during April, the rain falls for 6.3 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, in Bethel Island, there are 62 rainfall days, and 10.16" (258mm) of precipitation is accumulated.

Snowfall

In Bethel Island, snow does not fall in January through November.

Daylight

In April, the average length of the day is 13h and 13min.
On the first day of the month, sunrise is at 6:50 am and sunset at 7:30 pm. On the last day of April, sunrise is at 6:10 am and sunset at 7:57 pm PDT.

Sunshine

In Bethel Island, the average sunshine in April is 10.3h.

UV index

The average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 5 during April leads to these advisories:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What is the temperature in April in Bethel Island?

April temperatures in Bethel Island, California, vary between a high-temperature of 69.4°F (20.8°C) and a low-temperature of 46.6°F (8.1°C).

What is the average humidity in April in Bethel Island?

In April, the average relative humidity in Bethel Island is 66%.

How much does it rain in Bethel Island in April?

In Bethel Island, California, during April, the rain falls for 6.3 days and regularly aggregates up to 0.55" (14mm) of precipitation.

When it does not snow in Bethel Island?

In Bethel Island, California, snow does not fall in January through November.

How many hours of daylight does Bethel Island have in April?

In Bethel Island, the average day length in April is 13h and 13min.

When are sunrise and sunset in April in Bethel Island?

On the first day of April in Bethel Island, sunrise is at 6:50 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:57 pm PDT.

How many hours of sunshine does Bethel Island have in April?

In April, the average sunshine duration is 10.3h.

What is the UV index intensity in April in Bethel Island?

In April, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Bethel Island, CA

Average temperature in April - Bethel Island, CA
  • Average high temperature in April: 69.4°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in April: 46.6°F

The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

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Average pressure in April
Bethel Island, CA

Average pressure in April - Bethel Island, 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).

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Average wind speed in April
Bethel Island, CA

Average wind speed in April - Bethel Island, CA
  • Average wind speed in April: 6.8mph

The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).

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Average humidity in April
Bethel Island, CA

Average humidity in April - Bethel Island, CA
  • Average humidity in April: 66%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).

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Average rainfall in April
Bethel Island, CA

Average rainfall in April - Bethel Island, CA
  • Average rainfall in April: 0.55"

The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in April
Bethel Island, CA

Average rainfall days in April - Bethel Island, CA
  • Average rainfall days in April: 6.3 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).

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Average snowfall days in April
Bethel Island, CA

Average snowfall days in April - Bethel Island, CA
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in April /
Average sunshine in April
Bethel Island, CA

Average daylight in April / Average sunshine in April - Bethel Island, 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 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in April
Bethel Island, CA

Average sunshine days in April - Bethel Island, CA
  • Average sunshine days in April: 22.8 days

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).

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Average UV index in April
Bethel Island, CA

Average UV index in April - Bethel Island, 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).

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Average cloud cover in April
Bethel Island, CA

Average cloud cover in April - Bethel Island, CA
  • Average cloud cover in April: 26

The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).

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Average visibility in April
Bethel Island, CA

Average visibility in April - Bethel Island, 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).

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Bethel Island, California, USA

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