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's arrival brings an average high-temperature of a still warm 26.4°C (79.5°F), slightly deviating from August's 26°C (78.8°F). September in Santa Rosa sees the temperature falling to a mean low of 19.6°C (67.3°F).Humidity
The average relative humidity in September is 80%.Rainfall
The months with the least rainfall are August and September Rain falls for 3.2 days and accumulates 1mm (0.04") of rain.Daylight
In September, the average length of the day is 12h and 5min.On the first day of September in Santa Rosa, sunrise is at 06:18 and sunset at 18:21. On the last day of the month, sunrise is at 06:05 and sunset at 18:13 -05.
Sunshine
In Santa Rosa, the average sunshine in September is 8.2h.UV index
January through December, with an average maximum UV index of 6, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
What is the month with the lowest UV index?
What is the UV index intensity in September?
Average temperature in September
Santa Rosa, Ecuador
- Average high temperature in September: 26.4°C
The warmest month (with the highest average high temperature) is April (28.8°C).
The month with the lowest average high temperature is August (26°C).
- Average low temperature in September: 19.6°C
The month with the highest average low temperature is February (22.9°C).
The coldest month (with the lowest average low temperature) is August (19.3°C).
Average pressure in September
Santa Rosa, Ecuador
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is August (1013.5mbar).
The month with the lowest atmospheric pressure is February (1011.9mbar).
Average wind speed in September
Santa Rosa, Ecuador
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is September (11.7km/h).
The calmest month (with the lowest average wind speed) is March (7.2km/h).
Average humidity in September
Santa Rosa, Ecuador
- Average humidity in September: 80%
The months with the highest relative humidity are March, May and August (81%).
The months with the lowest relative humidity are January, October, November and December (79%).
Average rainfall in September
Santa Rosa, Ecuador
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is March (123mm).
The driest months (with the least rainfall) are August and September (1mm).
Average rainfall days in September
Santa Rosa, Ecuador
- Average rainfall days in September: 3.2 days
The month with the highest number of rainy days is March (19.7 days).
The month with the least rainy days is August (2.6 days).
Average daylight in September /
Average sunshine in September
Santa Rosa, Ecuador
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is November (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 7h and 12min).
Average sunshine days in September
Santa Rosa, Ecuador
- Average sunshine days in September: 24.6 days
The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in September
Santa Rosa, Ecuador
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
Santa Rosa, Ecuador
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Santa Rosa, Ecuador
- Average visibility in September: 9km
The months with the highest visibility are January, April, June, November and December (10km).
The months with the lowest visibility are February, March, May, July, August, September and October (9km).
Santa Rosa, Ecuador
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