April weather forecast
Oakley, CA

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Weather in April

April is a pleasant spring month in Oakley, California, with an average temperature fluctuating between 46.6°F (8.1°C) and 69.4°F (20.8°C).

Temperature

The shift into April brings a slight increase in the average high-temperature, moving from an enjoyable 63.5°F (17.5°C) in March to an agreeable 69.4°F (20.8°C). In Oakley, the April nights descend to a significantly cooler average of 46.6°F (8.1°C) compared to daytime highs.

Humidity

The average relative humidity in April is 66%.

Rainfall

In April, in Oakley, the rain falls for 6.3 days. Throughout April, 0.55" (14mm) of precipitation is accumulated. In Oakley, during the entire year, the rain falls for 62 days and collects up to 10.16" (258mm) of precipitation.

Snowfall

January through November are months without snowfall in Oakley, California.

Daylight

In April, the average length of the day in Oakley is 13h and 13min.
On the first day of April, 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.

Sunshine

In Oakley, California, the average sunshine in April is 10.3h.

UV index

The average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 5 during April translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What are April temperatures in Oakley?

April temperatures in Oakley 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 Oakley?

The average relative humidity in April in Oakley is 66%.

How many days does it rain in April in Oakley?

In Oakley, in April, during 6.3 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

When it does not snow in Oakley?

In Oakley, snow does not fall in January through November.

How many hours of daylight does Oakley have in April?

The average day length in April is 13h and 13min.

When is the sunrise / sunset in April in Oakley?

On the first day of April in Oakley, California, 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 long on average sun shines in April in Oakley?

In April, the average sunshine duration in Oakley is 10.3h.

How high is the UV index in April in Oakley?

In Oakley, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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
Oakley, CA

Average temperature in April - Oakley, 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
Oakley, CA

Average pressure in April - Oakley, 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
Oakley, CA

Average wind speed in April - Oakley, 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
Oakley, CA

Average humidity in April - Oakley, 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
Oakley, CA

Average rainfall in April - Oakley, 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
Oakley, CA

Average rainfall days in April - Oakley, 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
Oakley, CA

Average snowfall days in April - Oakley, 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
Oakley, CA

Average daylight in April / Average sunshine in April - Oakley, 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
Oakley, CA

Average sunshine days in April - Oakley, 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
Oakley, CA

Average UV index in April - Oakley, 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
Oakley, CA

Average cloud cover in April - Oakley, 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
Oakley, CA

Average visibility in April - Oakley, 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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Oakley, California, USA

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