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 tropical 30.9°C (87.6°F), showing little deviation from April's 32.5°C (90.5°F). Opico throughout May, experiences an average nighttime temperature of 22.7°C (72.9°F).Heat index
The heat index for May is appraised at a very hot 39°C (102.2°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Understand that the heat index values take into account shaded locations and mild winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. 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. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In Opico, the average relative humidity in May is 76%.Rainfall
May is the month with the most rainfall. Rain falls for 25.5 days and accumulates 234mm (9.21") of precipitation.Daylight
In May, the average length of the day in Opico, El Salvador, is 12h and 47min.On the first day of the month, sunrise is at 05:35 and sunset at 18:13. On the last day of May, sunrise is at 05:28 and sunset at 18:22 CST.
Sunshine
The average sunshine in May in Opico is 10.8h.UV index
The months with the lowest UV index are January, May, June, August through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 6 during May, leads to the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is May in Opico?
What is the average humidity in May in Opico?
What is the rainiest month in Opico?
How many days does it rain in May in Opico?
What is the average length of the day in May in Opico?
When are sunrise and sunset in May in Opico?
How long on average sun shines in May in Opico?
What are the months with the lowest UV index in Opico?
How high is the UV index in May in Opico?
Average temperature in May
Opico, El Salvador
- Average high temperature in May: 30.9°C
The warmest month (with the highest average high temperature) is March (32.6°C).
The month with the lowest average high temperature is October (29°C).
- Average low temperature in May: 22.7°C
The month with the highest average low temperature is April (22.8°C).
The coldest month (with the lowest average low temperature) is January (19.4°C).
Average pressure in May
Opico, El Salvador
- Average pressure in May: 1011.3mbar
The month with the highest atmospheric pressure is January (1013.5mbar).
The months with the lowest atmospheric pressure are May and October (1011.3mbar).
Average wind speed in May
Opico, El Salvador
- Average wind speed in May: 5.1km/h
The windiest month (with the highest average wind speed) is January (8.5km/h).
The calmest month (with the lowest average wind speed) is June (4.8km/h).
Average humidity in May
Opico, El Salvador
- Average humidity in May: 76%
The months with the highest relative humidity are September and October (82%).
The month with the lowest relative humidity is March (62%).
Average rainfall in May
Opico, El Salvador
- Average rainfall in May: 234mm
The wettest month (with the highest rainfall) is May (234mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in May
Opico, El Salvador
- Average rainfall days in May: 25.5 days
The month with the highest number of rainy days is September (26.3 days).
The month with the least rainy days is January (1.9 days).
Average daylight in May /
Average sunshine in May
Opico, El Salvador
- Average daylight in May: 12h and 5min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is April (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days in May
Opico, El Salvador
- Average sunshine days in May: 4.5 days
The month with the most sunshine days is January (28.7 days).
The month with the least sunshine days is September (3.2 days).
Average UV index in May
Opico, El Salvador
- Average UV index in May: 6
The months with the highest UV index are February, March, April and July (UV index 7).
The months with the lowest UV index are January, May, June, August, September, October, November and December (UV index 6).
Average cloud cover in May
Opico, El Salvador
- Average cloud cover in May: 36
The months with the most cloud cover are June, September and October (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility in May
Opico, El Salvador
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are September and October (8km).
Opico, El Salvador
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