May weather forecast
Pacific Grove, CA

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Weather in May

The last month of the spring, May, is another comfortable month in Pacific Grove, California, with temperature in the range of an average high of 63.9°F (17.7°C) and an average low of 49.5°F (9.7°C).

Temperature

May's arrival brings an average high-temperature of a still comfortable 63.9°F (17.7°C), slightly deviating from April's 61.3°F (16.3°C). Throughout the month of May, Pacific Grove witnesses an average low-temperature of 49.5°F (9.7°C).

Humidity

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

Rainfall

In Pacific Grove, in May, it is raining for 4.8 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, there are 73.6 rainfall days, and 11.77" (299mm) of precipitation is accumulated.

Ocean temperature

In Pacific Grove, the average seawater temperature in May is 54.1°F (12.3°C).
Note: Dipping in 54.1°F (12.3°C) at temperatures less than 50°F (10°C) without proper gear can lead to pronounced cold shock and breathing difficulties.

Daylight

In May, the average length of the day is 14h and 8min.
On the first day of the month, sunrise is at 6:12 am and sunset at 7:56 pm. On the last day of May, sunrise is at 5:50 am and sunset at 8:20 pm PDT.

Sunshine

The average sunshine in May is 10.9h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In May, an average UV index of 4 transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

What are May temperatures?

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

What is the most humid month?

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

What is the average humidity in May?

In Pacific Grove, the average relative humidity in May is 76%.

How much does it rain in May?

In Pacific Grove, in May, during 4.8 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

What is the ocean temperature in May?

In Pacific Grove, in May, the average water temperature is 54.1°F (12.3°C). Swimming in 54.1°F (12.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in May?

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

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:12 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:20 pm PDT.

How many hours of sunshine does Pacific Grove have in May?

The average sunshine duration in May is 10.9h.

How high is the UV index in May?

In May, the average daily maximum UV index in Pacific Grove is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Pacific Grove, CA

Average temperature in May - Pacific Grove, 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).

Average pressure in May
Pacific Grove, CA

Average pressure in May - Pacific Grove, 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).

Average wind speed in May
Pacific Grove, CA

Average wind speed in May - Pacific Grove, 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).

Average humidity in May
Pacific Grove, CA

Average humidity in May - Pacific Grove, 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%).

Average rainfall in May
Pacific Grove, CA

Average rainfall in May - Pacific Grove, 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").

Average rainfall days in May
Pacific Grove, CA

Average rainfall days in May - Pacific Grove, 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).

Average sea temperature in May
Pacific Grove, CA

Average sea temperature in May - Pacific Grove, 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).

Average daylight in May /
Average sunshine in May
Pacific Grove, CA

Average daylight in May / Average sunshine in May - Pacific Grove, 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).

Average sunshine days in May
Pacific Grove, CA

Average sunshine days in May - Pacific Grove, 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).

Average UV index in May
Pacific Grove, CA

Average UV index in May - Pacific Grove, 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).

Average cloud cover in May
Pacific Grove, CA

Average cloud cover in May - Pacific Grove, 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).

Average visibility in May
Pacific Grove, CA

Average visibility in May - Pacific Grove, 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).

Pacific Grove, California, USA

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