May weather forecast
Monterey, CA

The rugged mountainous coast of Big Sur in Monterey, California
The rugged mountainous coast of Big Sur in Monterey, California

Weather in May

The last month of the spring, May, is also an enjoyable month in Monterey, California, with an average temperature ranging between min 49.5°F (9.7°C) and max 63.9°F (17.7°C).

Temperature

In May, the average high-temperature is relatively the same as in April - a still comfortable 63.9°F (17.7°C). The average low-temperature, in Monterey, is 49.5°F (9.7°C).

Humidity

March and May, with an average relative humidity of 76%, are the most humid months.

Rainfall

In Monterey, during 4.8 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, there are 73.6 rainfall days, and 11.77" (299mm) of precipitation is accumulated.

Ocean temperature

In Monterey, the average seawater temperature in May is 54.1°F (12.3°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

In Monterey, the average length of the day in May is 14h and 8min.
On the first day of the month, sunrise is at 6:13 am and sunset at 7:55 pm. On the last day of May, sunrise is at 5:50 am and sunset at 8:19 pm PDT.

Sunshine

The average sunshine in May is 10.9h.

UV index

In Monterey, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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 May in Monterey?

In May, in Monterey, the average high-temperature is 63.9°F (17.7°C), and the average low-temperature is 49.5°F (9.7°C).

What is the most humid month in Monterey?

The months with the highest humidity in Monterey, California, are March and May, with an average relative humidity of 76%.

What is the average humidity in May in Monterey?

In May, the average relative humidity in Monterey, California, is 76%.

How many days does it rain in May in Monterey?

In Monterey, during May, the rain falls for 4.8 days and regularly aggregates up to 0.51" (13mm) of precipitation.

What is the water temperature in May in Monterey?

In Monterey, California, in May, the average water temperature is 54.1°F (12.3°C). Swimming in 54.1°F (12.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Monterey have in May?

In Monterey, the average day length in May is 14h and 8min.

When is the sunrise / sunset in May in Monterey?

On the first day of May in Monterey, sunrise is at 6:13 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:19 pm PDT.

How many hours of sunshine does Monterey have in May?

The average sunshine duration in May in Monterey is 10.9h.

How high is the UV index in May in Monterey?

In Monterey, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Monterey, CA

Average temperature in May - Monterey, CA
  • Average high temperature in May: 63.9°F

The warmest month (with the highest average high temperature) is September (72.5°F).
The month with the lowest average high temperature is December (57.2°F).

  • Average low temperature in May: 49.5°F

The months with the highest average low temperature are August and September (55.2°F).
The coldest month (with the lowest average low temperature) is February (46°F).

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Average pressure in May
Monterey, CA

Average pressure in May - Monterey, CA
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).

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Average wind speed in May
Monterey, CA

Average wind speed in May - Monterey, CA
  • Average wind speed in May: 7.5mph

The windiest months (with the highest average wind speed) are April and May (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in May
Monterey, CA

Average humidity in May - Monterey, CA
  • Average humidity in May: 76%

The months with the highest relative humidity are March and May (76%).
The month with the lowest relative humidity is November (68%).

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Average rainfall in May
Monterey, CA

Average rainfall in May - Monterey, CA
  • Average rainfall in May: 0.51"

The wettest month (with the highest rainfall) is December (2.4").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in May
Monterey, CA

Average rainfall days in May - Monterey, CA
  • Average rainfall days in May: 4.8 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (1.1 days).

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Average sea temperature in May
Monterey, CA

Average sea temperature in May - Monterey, CA
  • Average sea temperature in May: 54.2°F

The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).

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

Average daylight in May / Average sunshine in May - Monterey, CA
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in May: 10h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in May
Monterey, CA

Average sunshine days in May - Monterey, CA
  • Average sunshine days in May: 23.6 days

The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is March (16.8 days).

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Average UV index in May
Monterey, CA

Average UV index in May - Monterey, CA
  • Average UV index in May: 4

The months with the highest UV index are June, July, August and September (UV index 5).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Monterey, CA

Average cloud cover in May - Monterey, CA
  • Average cloud cover in May: 24

The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in May
Monterey, CA

Average visibility in May - Monterey, CA
  • Average visibility in May: 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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