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
San Diego's May reports an average high-temperature of a still warm 23.7°C (74.7°F), exhibiting a minor difference from April. In May, San Diego records an average nighttime temperature of 16.9°C (62.4°F).Humidity
In San Diego, the average relative humidity in May is 86%.Rainfall
In May, in San Diego, the rain falls for 29.1 days. Throughout May, 367mm (14.45") of precipitation is accumulated. In San Diego, during the entire year, the rain falls for 305 days and collects up to 2534mm (99.76") of precipitation.Daylight
The average length of the day in May in San Diego is 12h and 35min.On the first day of the month, sunrise is at 05:18 and sunset at 17:47. On the last day of May, sunrise is at 05:13 and sunset at 17:53 CST.
Sunshine
In San Diego, Costa Rica, the average sunshine in May is 7.3h.UV index
January through December, with an average maximum UV index of 5, are months with the highest UV index in San Diego. January through December, with an average maximum UV index of 5, are months with the lowest UV index in San Diego. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. When the Sun is at its strongest around midday, find shade and limit exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What are the temperatures in San Diego in May?
What is the average humidity in May in San Diego?
How many days does it rain in May in San Diego?
How many hours of daylight does San Diego have in May?
When is the sunrise / sunset in May in San Diego?
How many hours of sunshine does San Diego have in May?
What is the month with the highest UV index in San Diego?
What is the month with the lowest UV index in San Diego?
How high is the UV index in May in San Diego?
Average temperature in May
San Diego, Costa Rica
- Average high temperature in May: 23.7°C
The warmest month (with the highest average high temperature) is April (25.3°C).
The month with the lowest average high temperature is October (22.2°C).
- Average low temperature in May: 16.9°C
The month with the highest average low temperature is May (16.9°C).
The coldest month (with the lowest average low temperature) is January (13.7°C).
Average pressure in May
San Diego, Costa Rica
- Average pressure in May: 1011.3mbar
The month with the highest atmospheric pressure is January (1012.4mbar).
The month with the lowest atmospheric pressure is October (1010.9mbar).
Average wind speed in May
San Diego, Costa Rica
- Average wind speed in May: 4.4km/h
The windiest month (with the highest average wind speed) is February (8.6km/h).
The calmest month (with the lowest average wind speed) is September (3.7km/h).
Average humidity in May
San Diego, Costa Rica
- Average humidity in May: 86%
The month with the highest relative humidity is October (90%).
The month with the lowest relative humidity is February (76%).
Average rainfall in May
San Diego, Costa Rica
- Average rainfall in May: 367mm
The wettest month (with the highest rainfall) is October (444mm).
The driest month (with the least rainfall) is February (33mm).
Average rainfall days in May
San Diego, Costa Rica
- Average rainfall days in May: 29.1 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (14.9 days).
Average daylight in May /
Average sunshine in May
San Diego, Costa Rica
- Average daylight in May: 12h and 4min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in May: 7h and 2min
The month with the most sunshine is February (Average sunshine: 9h and 6min).
The month with the least sunshine is October (Average sunshine: 6h and 30min).
Average sunshine days in May
San Diego, Costa Rica
- Average sunshine days in May: 1.2 days
The month with the most sunshine days is February (10.4 days).
The month with the least sunshine days is October (0.1 days).
Average UV index in May
San Diego, Costa Rica
- Average UV index in May: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in May
San Diego, Costa Rica
- Average cloud cover in May: 55
The month with the most cloud cover is October (Cloud cover 61).
The month with the least cloud cover is February (Cloud cover 31).
Average visibility in May
San Diego, Costa Rica
- Average visibility in May: 7km
The months with the highest visibility are January, February and March (9km).
The months with the lowest visibility are September and October (6km).
San Diego, Costa Rica
Weather forecast for your location
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