May weather forecastPacific Grove, CA
May
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 14h and 6min
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 54min
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: 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: 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: 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: 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).





