April weather forecast and climate
San Geronimo, CA

Weather in April

April in San Geronimo, California, is an enjoyable spring month, with average temperature varying between 48.7°F (9.3°C) and 61.7°F (16.5°C).

Temperature

In April, the average high-temperature is practically the same as in March - an enjoyable 61.7°F (16.5°C). In April, the average low-temperature is 48.7°F (9.3°C).

Humidity

The average relative humidity in April is 75%.

Rainfall

In April, the rain falls for 7.8 days. Throughout April, 0.79" (20mm) of precipitation is accumulated. Throughout the year, in San Geronimo, there are 80.3 rainfall days, and 15.98" (406mm) of precipitation is accumulated.

Snowfall

In San Geronimo snow does not fall in January through November.

Daylight

In San Geronimo, the average length of the day is 13.2h.

Sunshine

The average sunshine in April is 10h.

UV index

In San Geronimo, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in April in San Geronimo?

The average high-temperature, in April, is 61.7°F (16.5°C), while the average low-temperature is 48.7°F (9.3°C).

What is the average humidity in April in San Geronimo?

In April, the average relative humidity in San Geronimo, California, is 75%.

How much does it rain in San Geronimo in April?

In San Geronimo, in April, it is raining for 7.8 days, with typically 0.79" (20mm) of accumulated precipitation.

When it does not snow in San Geronimo?

January through November are months without snowfall in San Geronimo, California.

How many hours of daylight does San Geronimo have in April?

In San Geronimo, the average length of the day in April is 13.2h.

How long on average sun shines in April in San Geronimo?

In San Geronimo, California, the average sunshine in April is 10h.

How high is the UV index in April in San Geronimo?

In San Geronimo, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in April
San Geronimo, CA

Average temperature in April - San Geronimo, CA
  • Average high temperature in April: 61.7°F

The warmest month (with the highest average high temperature) is September (70.9°F).
The month with the lowest average high temperature is December (55.2°F).

  • Average low temperature in April: 48.7°F

The month with the highest average low temperature is September (56.3°F).
The coldest month (with the lowest average low temperature) is December (46°F).

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Average pressure in April
San Geronimo, CA

Average pressure in April - San Geronimo, CA
  • Average pressure in April: 30.04"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in April
San Geronimo, CA

Average wind speed in April - San Geronimo, CA
  • Average wind speed in April: 8.3mph

The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is November (5.9mph).

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Average humidity in April
San Geronimo, CA

Average humidity in April - San Geronimo, CA
  • Average humidity in April: 75%

The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in April
San Geronimo, CA

Average rainfall in April - San Geronimo, CA
  • Average rainfall in April: 0.79"

The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in April
San Geronimo, CA

Average rainfall days in April - San Geronimo, CA
  • Average rainfall days in April: 7.8 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (2.3 days).

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Average snowfall days in April
San Geronimo, CA

Average snowfall days in April - San Geronimo, CA
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is December (0.1 days).
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
San Geronimo, CA

Average daylight in April / Average sunshine in April - San Geronimo, CA
  • Average daylight in April: 13.2h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in April: 10h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 5.6h).

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Average sunshine days in April
San Geronimo, CA

Average sunshine days in April - San Geronimo, CA
  • Average sunshine days in April: 20.5 days

Months with the most sunshine days are June and July (24.8 days).
The month with the least sunshine days is March (16.6 days).

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Average UV index in April
San Geronimo, CA

Average UV index in April - San Geronimo, CA
  • Average UV index in April: 4

Months with the highest UV index are June, July, August and September (UV index 5).
Months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in April
San Geronimo, CA

Average cloud cover in April - San Geronimo, CA
  • Average cloud cover in April: 30

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

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Average visibility in April
San Geronimo, CA

Average visibility in April - San Geronimo, CA
  • Average visibility in April: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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