April weather forecast
San Geronimo, CA

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Weather in April

April is a refreshing spring month in San Geronimo, California, with an average temperature ranging between max 61.7°F (16.5°C) and min 48.7°F (9.3°C).

Temperature

The average high-temperature during April registers at an enjoyable 61.7°F (16.5°C), closely corresponding to the preceding month. San Geronimo, during April nights, observes an average temperature of 48.7°F (9.3°C).

Humidity

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

Rainfall

In San Geronimo, in April, during 7.8 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In San Geronimo, during the entire year, the rain falls for 80.3 days and collects up to 15.98" (406mm) of precipitation.

Snowfall

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

Daylight

In April, the average length of the day in San Geronimo, California, is 13h and 13min.
On the first day of April, sunrise is at 6:54 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:01 pm PDT.

Sunshine

The average sunshine in April is 10h.

UV index

In April, the average daily maximum UV index in San Geronimo, California, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 4 during April translates into the following directions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What is the temperature in April in San Geronimo?

In April, the average high-temperature and low-temperature in San Geronimo are 61.7°F (16.5°C) and 48.7°F (9.3°C) respectively.

What is the average humidity in April in San Geronimo?

In April, the average relative humidity is 75%.

How much does it rain in San Geronimo in April?

In April, the rain falls for 7.8 days. Throughout April, 0.79" (20mm) of precipitation is accumulated.

When it does not snow in San Geronimo?

January through November are months without snowfall in San Geronimo.

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

In April, the average day length in San Geronimo is 13h and 13min.

What time are sunrise and sunset in April in San Geronimo?

In April, on the first day of the month, sunrise is at 6:54 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:01 pm PDT.

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

The average sunshine duration in April in San Geronimo, California, is 10h.

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

The average daily maximum UV index in April in San Geronimo is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe 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
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"Hg

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

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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).
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
San Geronimo, CA

Average daylight in April / Average sunshine in April - San Geronimo, 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 0min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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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

The 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

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).

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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

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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San Geronimo, California, USA

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