May weather forecast and climate
Gilroy, CA

A colorful sunset sky over the hilly region of Gilroy in California
A colorful sunset sky over the hilly region of Gilroy in California

Weather in May

May, the last month of the spring, in Gilroy, is another pleasant month, with average temperature fluctuating between 72.5°F (22.5°C) and 46°F (7.8°C).

Temperature

In May, the average high-temperature is essentially the same as in April - a still agreeable 72.5°F (22.5°C). In May, in Gilroy, the average low-temperature is 46°F (7.8°C).

Humidity

In May, the average relative humidity is 66%.

Rainfall

May is the last month it rains. During 2.4 rainfall days, in May, Gilroy aggregates 0.12" (3mm) of precipitation. In Gilroy, California, during the entire year, the rain falls for 43.4 days and collects up to 3.66" (93mm) of precipitation.

Daylight

In May, the average length of the day is 14.2h.

Sunshine

The average sunshine in May is 11.1h.

UV index

In May, the average daily maximum UV index in Gilroy, California, is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for 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 May in Gilroy?

In May, the average high-temperature is 72.5°F (22.5°C), and the average low-temperature is 46°F (7.8°C).

What is the average humidity in May in Gilroy?

In May, the average relative humidity in Gilroy is 66%.

What is the last month it rains in Gilroy?

May is the last month it rains in Gilroy. During 2.4 rainfall days, in May, Gilroy aggregates 0.12" (3mm) of precipitation.

How many hours of daylight does Gilroy have in May?

The average length of the day in May in Gilroy, California, is 14.2h.

How many hours of sunshine does Gilroy have in May?

In May, the average sunshine in Gilroy, California, is 11.1h.

What is the UV index intensity in May in Gilroy?

In Gilroy, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in May
Gilroy, CA

Average temperature in May - Gilroy, CA
  • Average high temperature in May: 72.5°F

The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (57.6°F).

  • Average low temperature in May: 46°F

Months with the highest average low temperature are August and September (54.1°F).
The coldest months (with the lowest average low temperature) are February and March (40.6°F).

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Average pressure in May
Gilroy, CA

Average pressure in May - Gilroy, CA
  • Average pressure in May: 29.98"

The month with the highest atmospheric pressure is January (30.14").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in May
Gilroy, CA

Average wind speed in May - Gilroy, CA
  • Average wind speed in May: 5.3mph

The windiest month (with the highest average wind speed) is May (5.3mph).
The calmest month (with the lowest average wind speed) is November (3.9mph).

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Average humidity in May
Gilroy, CA

Average humidity in May - Gilroy, CA
  • Average humidity in May: 66%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (57%).

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Average rainfall in May
Gilroy, CA

Average rainfall in May - Gilroy, CA
  • Average rainfall in May: 0.12"

The wettest month (with the highest rainfall) is December (0.83").
The driest months (with the least rainfall) are June, July and August (0").

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Average rainfall days in May
Gilroy, CA

Average rainfall days in May - Gilroy, CA
  • Average rainfall days in May: 2.4 days

The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is August (0.6 days).

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Average daylight in May /
Average sunshine in May
Gilroy, CA

Average daylight in May / Average sunshine in May - Gilroy, CA
  • Average daylight in May: 14.2h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in May: 11.1h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average sunshine days in May
Gilroy, CA

Average sunshine days in May - Gilroy, CA
  • Average sunshine days in May: 27.7 days

The month with the most sunshine days is July (29.9 days).
The month with the least sunshine days is March (21.4 days).

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Average UV index in May
Gilroy, CA

Average UV index in May - Gilroy, CA
  • Average UV index in May: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in May
Gilroy, CA

Average cloud cover in May - Gilroy, CA
  • Average cloud cover in May: 22

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in May
Gilroy, CA

Average visibility in May - Gilroy, 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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