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 registers an average high-temperature of a pleasant 22.9°C (73.2°F), slightly varied from August's 23°C (73.4°F). Rancho Redondo witnesses a consistent average low-temperature of 16.5°C (61.7°F) throughout September.Humidity
In September, the average relative humidity is 89%.Rainfall
In September, the rain falls for 29.7 days. Throughout September, 320mm (12.6") of precipitation is accumulated. Throughout the year, there are 305 rainfall days, and 2534mm (99.76") of precipitation is accumulated.Daylight
In Rancho Redondo, the average length of the day in September is 12h and 11min.On the first day of September, 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
The average sunshine in September in Rancho Redondo 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 are January through December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. It's recommended to limit sun exposure when its radiation is at its peak during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Rancho Redondo?
What is the average humidity in September in Rancho Redondo?
How many days does it rain in September in Rancho Redondo?
How many hours of daylight does Rancho Redondo have in September?
When are sunrise and sunset in September in Rancho Redondo?
How many hours of sunshine does Rancho Redondo have in September?
What are the months with the highest UV index in Rancho Redondo?
When is the lowest UV index in Rancho Redondo?
How high is the UV index in September in Rancho Redondo?
Average temperature in September
Rancho Redondo, 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
Rancho Redondo, 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
Rancho Redondo, 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
Rancho Redondo, 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
Rancho Redondo, 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
Rancho Redondo, 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
Rancho Redondo, 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
Rancho Redondo, 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
Rancho Redondo, 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
Rancho Redondo, 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
Rancho Redondo, 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).
Rancho Redondo, Costa Rica
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