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
May
Weather in May
Temperature
The ushering in of May brings an average high-temperature of a still moderately hot 27.1°C (80.8°F), closely mirroring the 28.4°C (83.1°F) of April. In Porvenir, an average nighttime temperature of 21.8°C (71.2°F) is expected during May.Heat index
Throughout May, the heat index is evaluated at a hot 30°C (86°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In May, the average relative humidity is 82%.Rainfall
In Porvenir, Costa Rica, during May, the rain falls for 30 days and regularly aggregates up to 268mm (10.55") of precipitation. In Porvenir, during the entire year, the rain falls for 290 days and collects up to 2270mm (89.37") of precipitation.Daylight
The average length of the day in May in Porvenir is 12h and 34min.On the first day of the month, sunrise is at 05:19 and sunset at 17:48. On the last day of May, sunrise is at 05:15 and sunset at 17:54 CST.
Sunshine
In May, the average sunshine is 8.3h.UV index
January through December, with an average maximum UV index of 6, are months with the highest UV index. January through December, with an average maximum UV index of 6, are months with the lowest UV index in Porvenir. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 6 during May translates into these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Porvenir?
What is the average humidity in May in Porvenir?
How many days does it rain in May in Porvenir?
How many hours of daylight does Porvenir have in May?
What time are sunrise and sunset in May in Porvenir?
How long on average sun shines in May in Porvenir?
What is the month with the highest UV index in Porvenir?
What are the months with the lowest UV index in Porvenir?
What is the UV index reading in May in Porvenir?
Average temperature in May
Porvenir, Costa Rica
- Average high temperature in May: 27.1°C
The warmest month (with the highest average high temperature) is March (29.3°C).
The month with the lowest average high temperature is October (25.3°C).
- Average low temperature in May: 21.8°C
The month with the highest average low temperature is April (21.9°C).
The coldest months (with the lowest average low temperature) are January, February and December (20.5°C).
Average pressure in May
Porvenir, Costa Rica
- Average pressure in May: 1011.1mbar
The month with the highest atmospheric pressure is January (1011.8mbar).
The months with the lowest atmospheric pressure are October and November (1010.9mbar).
Average wind speed in May
Porvenir, Costa Rica
- Average wind speed in May: 5.5km/h
The windiest months (with the highest average wind speed) are February and March (7.6km/h).
The calmest month (with the lowest average wind speed) is June (5.2km/h).
Average humidity in May
Porvenir, Costa Rica
- Average humidity in May: 82%
The months with the highest relative humidity are September and October (86%).
The months with the lowest relative humidity are February and March (68%).
Average rainfall in May
Porvenir, Costa Rica
- Average rainfall in May: 268mm
The wettest month (with the highest rainfall) is October (440mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days in May
Porvenir, Costa Rica
- Average rainfall days in May: 30 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (9.7 days).
Average daylight in May /
Average sunshine in May
Porvenir, 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: 8h and 2min
The month with the most sunshine is February (Average sunshine: 9h and 48min).
The month with the least sunshine is October (Average sunshine: 7h and 30min).
Average sunshine days in May
Porvenir, Costa Rica
- Average sunshine days in May: 0.7 days
The month with the most sunshine days is February (13.7 days).
The month with the least sunshine days is September (0.2 days).
Average UV index in May
Porvenir, Costa Rica
- Average UV index in May: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in May
Porvenir, Costa Rica
- Average cloud cover in May: 43
The month with the most cloud cover is October (Cloud cover 49).
The month with the least cloud cover is February (Cloud cover 15).
Average visibility in May
Porvenir, Costa Rica
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).
