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
The onset of September brings with it an average high-temperature of an agreeable 22.9°C (73.2°F), showing a negligible variation from the month before. The average low-temperature of 16.5°C (61.7°F) is witnessed in Cot during September.Humidity
The average relative humidity in September is 89%.Rainfall
In Cot, in September, it is raining for 29.7 days, with typically 320mm (12.6") of accumulated precipitation. Throughout the year, there are 305 rainfall days, and 2534mm (99.76") of precipitation is accumulated.Daylight
The average length of the day in September in Cot is 12h and 11min.On the first day of September in Cot, Costa Rica, sunrise is at 05:26 and sunset at 17:44. On the last day of the month, sunrise is at 05:24 and sunset at 17:26 CST.
Sunshine
In Cot, the average sunshine in September is 7.3h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 5. The months with the lowest UV index in Cot, Costa Rica, are January through December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 5 in September suggests the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What is the average September temperature in Cot?
What is the average humidity in September in Cot?
How many days does it rain in September in Cot?
How many hours of daylight does Cot have in September?
When is the sunrise / sunset in September in Cot?
How many hours of sunshine does Cot have in September?
What is the month with the highest UV index in Cot?
What are the months with the lowest UV index in Cot?
How high is the UV index in September in Cot?
Average temperature in September
Cot, Costa Rica
- Average high temperature in September: 22.9°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 September: 16.5°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 September
Cot, Costa Rica
- Average pressure in September: 1011.2mbar
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 September
Cot, Costa Rica
- Average wind speed in September: 3.7km/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 September
Cot, Costa Rica
- Average humidity in September: 89%
The month with the highest relative humidity is October (90%).
The month with the lowest relative humidity is February (76%).
Average rainfall in September
Cot, Costa Rica
- Average rainfall in September: 320mm
The wettest month (with the highest rainfall) is October (444mm).
The driest month (with the least rainfall) is February (33mm).
Average rainfall days in September
Cot, Costa Rica
- Average rainfall days in September: 29.7 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 September /
Average sunshine in September
Cot, 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: 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 September
Cot, Costa Rica
- Average sunshine days in September: 0.3 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 September
Cot, Costa Rica
- Average UV index in September: 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 September
Cot, Costa Rica
- Average cloud cover in September: 56
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 September
Cot, Costa Rica
- Average visibility in September: 6km
The months with the highest visibility are January, February and March (9km).
The months with the lowest visibility are September and October (6km).
Cot, Costa Rica
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