Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September is the warmest month, exhibiting average temperatures of 30°C (86°F) at the peak and 25°C (77°F) at the base.Heat index
For September, the heat index is estimated at a sweltering 35°C (95°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Observations indicate that the heat index values are for shady locations with light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
September is the least humid month in Cocal, Costa Rica, with an average relative humidity of 71%.Rainfall
In Cocal, in September, it is raining for 19.2 days, with typically 84mm (3.31") of accumulated precipitation. Throughout the year, there are 241.5 rainfall days, and 1580mm (62.2") of precipitation is accumulated.Daylight
In Cocal, the average length of the day in September is 12h and 11min.On the first day of the month, sunrise is at 05:23 and sunset at 17:41. On the last day of September, in Cocal, Costa Rica, sunrise is at 05:21 and sunset at 17:23 CST.
Sunshine
With an average of 9.2h of sunshine, September has the most sunshine of the year.UV index
The months with the highest UV index are March through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 7 in September translates into the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What are the warmest months in Cocal?
How hot does it get in Cocal in September?
What is the least humid month in Cocal?
What is the average humidity in September in Cocal?
How many days does it rain in September in Cocal?
What is the average length of the day in September in Cocal?
What time are sunrise and sunset in September in Cocal?
What month has the most sunshine in Cocal?
How many hours of sunshine does Cocal have in September?
What are the months with the highest UV index in Cocal?
What is the UV index intensity in September in Cocal?
Average temperature in September
Cocal, Costa Rica
- Average high temperature in September: 30°C
The warmest month (with the highest average high temperature) is September (30°C).
The month with the lowest average high temperature is January (27.6°C).
- Average low temperature in September: 25°C
The months with the highest average low temperature are May and June (25.3°C).
The coldest month (with the lowest average low temperature) is February (22.8°C).
Average pressure in September
Cocal, Costa Rica
- Average pressure in September: 1011.2mbar
The month with the highest atmospheric pressure is January (1013.1mbar).
The month with the lowest atmospheric pressure is October (1010.9mbar).
Average wind speed in September
Cocal, Costa Rica
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is November (9.7km/h).
The calmest month (with the lowest average wind speed) is September (7.4km/h).
Average humidity in September
Cocal, Costa Rica
- Average humidity in September: 71%
The months with the highest relative humidity are May and June (74%).
The month with the lowest relative humidity is September (71%).
Average rainfall in September
Cocal, Costa Rica
- Average rainfall in September: 84mm
The wettest month (with the highest rainfall) is July (203mm).
The driest month (with the least rainfall) is April (65mm).
Average rainfall days in September
Cocal, Costa Rica
- Average rainfall days in September: 19.2 days
The month with the highest number of rainy days is July (25.8 days).
The month with the least rainy days is February (15.7 days).
Average daylight in September /
Average sunshine in September
Cocal, Costa Rica
- Average daylight in September: 12h and 1min
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 September: 9h and 1min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 18min).
Average sunshine days in September
Cocal, Costa Rica
- Average sunshine days in September: 7.6 days
The month with the most sunshine days is January (10.6 days).
The month with the least sunshine days is July (3.2 days).
Average UV index in September
Cocal, Costa Rica
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February and December (UV index 6).
Average cloud cover in September
Cocal, Costa Rica
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in September
Cocal, Costa Rica
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
Cocal, Costa Rica
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