Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's average high-temperature stands at a still comfortable 64.9°F (18.3°C), showing little deviation from April's 62.2°F (16.8°C). Nighttime temperature dips to a mean of 50.2°F (10.1°C) during May.Humidity
The average relative humidity in May is 74%.Rainfall
In San Gregorio, during May, the rain falls for 3.8 days and regularly aggregates up to 0.31" (8mm) of precipitation. In San Gregorio, during the entire year, the rain falls for 57.5 days and collects up to 4.76" (121mm) of precipitation.Daylight
In San Gregorio, the average length of the day in May is 14h and 11min.On the first day of May, sunrise is at 6:13 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:24 pm PDT.
Sunshine
In May, the average sunshine in San Gregorio is 10.7h.UV index
The average daily maximum UV index in May in San Gregorio, California, is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 4 during May translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What is the usual temperature for San Gregorio in May?
What is the average humidity in May in San Gregorio?
How many days does it rain in May in San Gregorio?
How many hours of daylight does San Gregorio have in May?
When are sunrise and sunset in May in San Gregorio?
How many hours of sunshine does San Gregorio have in May?
What is the UV index reading in May in San Gregorio?
Average temperature in May
San Gregorio, CA
- Average high temperature in May: 64.9°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in May: 50.2°F
The months with the highest average low temperature are August and September (56.7°F).
The coldest months (with the lowest average low temperature) are January and February (46.4°F).
Average pressure in May
San Gregorio, CA
- Average pressure in May: 29.98"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
San Gregorio, CA
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
San Gregorio, CA
- Average humidity in May: 74%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
San Gregorio, CA
- Average rainfall in May: 0.31"
The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
San Gregorio, CA
- Average rainfall days in May: 3.8 days
The month with the highest number of rainy days is March (10.6 days).
The month with the least rainy days is June (0.9 days).
Average daylight in May /
Average sunshine in May
San Gregorio, CA
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 10h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in May
San Gregorio, CA
- Average sunshine days in May: 22.9 days
The months with the most sunshine days are June and July (26.3 days).
The month with the least sunshine days is March (18.3 days).
Average UV index in May
San Gregorio, CA
- Average UV index in May: 4
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in May
San Gregorio, CA
- Average cloud cover in May: 25
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
San Gregorio, 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).
San Gregorio, California, USA
Weather forecast for your location
2. Allow the app to use your location
