May weather forecast and climate
San Geronimo, CA

Weather in May

May, the last month of the spring, in San Geronimo, is also an enjoyable month, with average temperature varying between 63.3°F (17.4°C) and 50.7°F (10.4°C).

Temperature

In San Geronimo, the average high-temperature in May is relatively the same as in April - a still comfortable 63.3°F (17.4°C). In San Geronimo, the average low-temperature is 50.7°F (10.4°C).

Humidity

In May, the average relative humidity in San Geronimo is 76%.

Rainfall

In San Geronimo, in May, during 5.7 rainfall days, 0.71" (18mm) of precipitation is typically 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, California, the average length of the day in May is 14.3h.

Sunshine

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

UV index

In May, the average daily maximum UV index in San Geronimo is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in May in San Geronimo?

In San Geronimo, California, in May, the average high-temperature is 63.3°F (17.4°C), and the average low-temperature is 50.7°F (10.4°C).

What is the average humidity in May in San Geronimo?

In San Geronimo, the average relative humidity in May is 76%.

How many days does it rain in May in San Geronimo?

In May, the rain falls for 5.7 days. Throughout May, 0.71" (18mm) of precipitation is accumulated.

When it does not snow in San Geronimo?

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

What is the average length of the day in May in San Geronimo?

In San Geronimo, the average length of the day in May is 14.3h.

How many hours of sunshine does San Geronimo have in May?

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

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

In May, the average daily maximum UV index in San Geronimo, California, is 4. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

Average temperature in May
San Geronimo, CA

Average temperature in May - San Geronimo, CA
  • Average high temperature in May: 63.3°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 May: 50.7°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 May
San Geronimo, CA

Average pressure in May - San Geronimo, CA
  • Average pressure in May: 29.98"

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 May
San Geronimo, CA

Average wind speed in May - San Geronimo, CA
  • Average wind speed in May: 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 May
San Geronimo, CA

Average humidity in May - San Geronimo, CA
  • Average humidity in May: 76%

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 May
San Geronimo, CA

Average rainfall in May - San Geronimo, CA
  • Average rainfall in May: 0.71"

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 May
San Geronimo, CA

Average rainfall days in May - San Geronimo, CA
  • Average rainfall days in May: 5.7 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 May
San Geronimo, CA

Average snowfall days in May - San Geronimo, CA
  • Average snowfall days in May: 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 May /
Average sunshine in May
San Geronimo, CA

Average daylight in May / Average sunshine in May - San Geronimo, CA
  • Average daylight in May: 14.3h

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 May: 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 May
San Geronimo, CA

Average sunshine days in May - San Geronimo, CA
  • Average sunshine days in May: 22.8 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 May
San Geronimo, CA

Average UV index in May - San Geronimo, CA
  • Average UV index in May: 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 May
San Geronimo, CA

Average cloud cover in May - San Geronimo, CA
  • Average cloud cover in May: 31

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 May
San Geronimo, CA

Average visibility in May - San Geronimo, CA
  • Average visibility in May: 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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