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
The transition from April to May in Alajuela sees average high-temperatures adjusting to a still moderately hot 26.1°C (79°F), from a not significantly different 28°C (82.4°F). Alajuela observes an average low-temperature of 18.3°C (64.9°F) during May nights.Humidity
In Alajuela, the average relative humidity in May is 84%.Rainfall
In Alajuela, during May, the rain falls for 28.3 days and regularly aggregates up to 352mm (13.86") of precipitation. In Alajuela, during the entire year, the rain falls for 289.5 days and collects up to 2506mm (98.66") of precipitation.Daylight
In Alajuela, Costa Rica, the average length of the day in May is 12h and 37min.On the first day of May, sunrise is at 05:19 and sunset at 17:49. On the last day of the month, sunrise is at 05:14 and sunset at 17:56 CST.
Sunshine
In May, the average sunshine is 7.3h.UV index
The months with the lowest UV index are January, February, May through December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Make use of precautions - It is urged to ward off sun damage. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. 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.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Alajuela in May?
What is the average humidity in May in Alajuela?
How much does it rain in Alajuela in May?
What is the average length of the day in May in Alajuela?
When is the sunrise / sunset in May in Alajuela?
How long on average sun shines in May in Alajuela?
When is the lowest UV index in Alajuela?
What is the UV index intensity in May in Alajuela?
Average temperature in May
Alajuela, Costa Rica
- Average high temperature in May: 26.1°C
The warmest month (with the highest average high temperature) is April (28°C).
The month with the lowest average high temperature is October (23.8°C).
- Average low temperature in May: 18.3°C
The month with the highest average low temperature is May (18.3°C).
The coldest month (with the lowest average low temperature) is January (15.2°C).
Average pressure in May
Alajuela, Costa Rica
- Average pressure in May: 1011.1mbar
The month with the highest atmospheric pressure is January (1012.2mbar).
The month with the lowest atmospheric pressure is October (1010.8mbar).
Average wind speed in May
Alajuela, Costa Rica
- Average wind speed in May: 4.9km/h
The windiest month (with the highest average wind speed) is February (10.9km/h).
The calmest month (with the lowest average wind speed) is September (3.9km/h).
Average humidity in May
Alajuela, Costa Rica
- Average humidity in May: 84%
The month with the highest relative humidity is October (90%).
The month with the lowest relative humidity is March (71%).
Average rainfall in May
Alajuela, Costa Rica
- Average rainfall in May: 352mm
The wettest month (with the highest rainfall) is October (421mm).
The driest month (with the least rainfall) is February (25mm).
Average rainfall days in May
Alajuela, Costa Rica
- Average rainfall days in May: 28.3 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (12.3 days).
Average daylight in May /
Average sunshine in May
Alajuela, 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 30min).
- Average sunshine in May: 7h and 2min
The month with the most sunshine is February (Average sunshine: 9h and 24min).
The month with the least sunshine is October (Average sunshine: 6h and 12min).
Average sunshine days in May
Alajuela, Costa Rica
- Average sunshine days in May: 1.9 days
The month with the most sunshine days is February (11.9 days).
The month with the least sunshine days is September (0.4 days).
Average UV index in May
Alajuela, Costa Rica
- Average UV index in May: 5
The months with the highest UV index are March and April (UV index 6).
The months with the lowest UV index are January, February, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in May
Alajuela, Costa Rica
- Average cloud cover in May: 53
The month with the most cloud cover is October (Cloud cover 62).
The month with the least cloud cover is February (Cloud cover 23).
Average visibility in May
Alajuela, Costa Rica
- Average visibility in May: 8km
The months with the highest visibility are January, February, March and April (9km).
The months with the lowest visibility are September and October (6km).
Alajuela, Costa Rica
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