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 arrival of September in San Vicente records an average high-temperature of a still warm 26.3°C (79.3°F), closely related to the 26.7°C (80.1°F) observed in August. In the month of September, San Vicente witnesses a consistent average low-temperature of 19.2°C (66.6°F).Humidity
The average relative humidity in September in San Vicente is 87%.Rainfall
In San Vicente, Costa Rica, during September, the rain falls for 29.4 days and regularly aggregates up to 288mm (11.34") of precipitation. In San Vicente, Costa Rica, during the entire year, the rain falls for 272 days and collects up to 2217mm (87.28") of precipitation.Daylight
In September, the average length of the day in San Vicente, Costa Rica, is 12h and 11min.On the first day of the month, sunrise is at 05:26 and sunset at 17:45. On the last day of September, sunrise is at 05:24 and sunset at 17:27 CST.
Sunshine
In San Vicente, the average sunshine in September is 7.6h.UV index
The months with the highest UV index are January through April, June, July, September, October and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 6 during September leads to these instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for San Vicente in September?
What is the average humidity in September in San Vicente?
How many days does it rain in September in San Vicente?
How many hours of daylight does San Vicente have in September?
When are sunrise and sunset in September in San Vicente?
How many hours of sunshine does San Vicente have in September?
What are the months with the highest UV index in San Vicente?
What is the UV index reading in September in San Vicente?
Average temperature in September
San Vicente, Costa Rica
- Average high temperature in September: 26.3°C
The warmest months (with the highest average high temperature) are March and April (29.7°C).
The month with the lowest average high temperature is October (25.4°C).
- Average low temperature in September: 19.2°C
The month with the highest average low temperature is May (19.8°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).
Average pressure in September
San Vicente, Costa Rica
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is January (1012.1mbar).
The month with the lowest atmospheric pressure is October (1010.7mbar).
Average wind speed in September
San Vicente, Costa Rica
- Average wind speed in September: 3.8km/h
The windiest month (with the highest average wind speed) is February (10.6km/h).
The calmest month (with the lowest average wind speed) is September (3.8km/h).
Average humidity in September
San Vicente, Costa Rica
- Average humidity in September: 87%
The month with the highest relative humidity is October (89%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
San Vicente, Costa Rica
- Average rainfall in September: 288mm
The wettest month (with the highest rainfall) is October (396mm).
The driest month (with the least rainfall) is February (17mm).
Average rainfall days in September
San Vicente, Costa Rica
- Average rainfall days in September: 29.4 days
The month with the highest number of rainy days is October (30.2 days).
The month with the least rainy days is February (10.3 days).
Average daylight in September /
Average sunshine in September
San Vicente, 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 4min
The month with the most sunshine is March (Average sunshine: 9h and 24min).
The month with the least sunshine is October (Average sunshine: 7h and 0min).
Average sunshine days in September
San Vicente, Costa Rica
- Average sunshine days in September: 0.5 days
The month with the most sunshine days is January (16.7 days).
The month with the least sunshine days is September (0.5 days).
Average UV index in September
San Vicente, Costa Rica
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, June, July, September, October and December (UV index 6).
The months with the lowest UV index are May, August and November (UV index 5).
Average cloud cover in September
San Vicente, Costa Rica
- Average cloud cover in September: 50
The month with the most cloud cover is October (Cloud cover 54).
The month with the least cloud cover is February (Cloud cover 19).
Average visibility in September
San Vicente, Costa Rica
- Average visibility in September: 7km
The months with the highest visibility are February and March (10km).
The months with the lowest visibility are August, September, October and November (7km).
San Vicente, Costa Rica
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