April weather forecast
San Anselmo, CA

Weather in April

April in San Anselmo, California, is an enjoyable spring month, with an average temperature ranging between max 62.8°F (17.1°C) and min 48.6°F (9.2°C).

Temperature

In San Anselmo, California, the average high-temperature in April is practically the same as in March - a comfortable 62.8°F (17.1°C). The average low-temperature, is 48.6°F (9.2°C).

Humidity

In April, the average relative humidity is 74%.

Rainfall

In San Anselmo, in April, during 5.5 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. Throughout the year, in San Anselmo, there are 48 rainfall days, and 3.94" (100mm) of precipitation is accumulated.

Daylight

In April, the average length of the day in San Anselmo, California, is 13h and 13min.
On the first day of April, sunrise is at 6:55 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:59 pm PDT.

Sunshine

In April, the average sunshine is 10h.

UV index

April, June through September, with an average maximum UV index of 5, are months with the highest UV index in San Anselmo. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 5 in April transform into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in April in San Anselmo?

In San Anselmo, California, in April, the average high-temperature is 62.8°F (17.1°C), and the average low-temperature is 48.6°F (9.2°C).

What is the average humidity in April in San Anselmo?

In San Anselmo, the average relative humidity in April is 74%.

How many days does it rain in April in San Anselmo?

In San Anselmo, in April, during 5.5 rainfall days, 0.2" (5mm) of precipitation is typically accumulated.

What is the average length of the day in April in San Anselmo?

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

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

In April, on the first day of the month, sunrise is at 6:55 am and sunset at 7:33 pm. On the last day of the month, in San Anselmo, sunrise is at 6:15 am and sunset at 7:59 pm PDT.

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

In San Anselmo, the average sunshine duration in April is 10h.

What are the months with the highest UV index in San Anselmo?

April, June through September, with an average maximum UV index of 5, are months with the highest UV index in San Anselmo.

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

In April, the average daily maximum UV index in San Anselmo is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
San Anselmo, CA

Average temperature in April - San Anselmo, CA
  • Average high temperature in April: 62.8°F

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in April: 48.6°F

The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

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Average pressure in April
San Anselmo, CA

Average pressure in April - San Anselmo, CA
  • Average pressure in April: 30.03"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 Anselmo, CA

Average wind speed in April - San Anselmo, CA
  • Average wind speed in April: 7.6mph

The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).

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Average humidity in April
San Anselmo, CA

Average humidity in April - San Anselmo, CA
  • Average humidity in April: 74%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in April
San Anselmo, CA

Average rainfall in April - San Anselmo, CA
  • Average rainfall in April: 0.2"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

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Average rainfall days in April
San Anselmo, CA

Average rainfall days in April - San Anselmo, CA
  • Average rainfall days in April: 5.5 days

The month with the highest number of rainy days is March (8.8 days).
The months with the least rainy days are June and August (1.2 days).

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Average daylight in April /
Average sunshine in April
San Anselmo, CA

Average daylight in April / Average sunshine in April - San Anselmo, CA
  • Average daylight in April: 13h and 13min

The month with the longest days is June (Average daylight: 14h and 46min).
The month with the shortest days is December (Average daylight: 9h and 35min).

  • 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 30min).

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Average sunshine days in April
San Anselmo, CA

Average sunshine days in April - San Anselmo, CA
  • Average sunshine days in April: 23.3 days

The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).

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Average UV index in April
San Anselmo, CA

Average UV index in April - San Anselmo, CA
  • Average UV index in April: 5

The months with the highest UV index are April, June, July, August and September (UV index 5).
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
San Anselmo, CA

Average cloud cover in April - San Anselmo, 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 Anselmo, CA

Average visibility in April - San Anselmo, 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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