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
September
Weather in September
Temperature
With the arrival of September, San Clemente's average high-temperature registers at a still moderately hot 26.4°C (79.5°F), indicating a subtle variation from the previous month. Throughout the September nights, San Clemente encounters a low-temperature of 20.8°C (69.4°F).Humidity
In September, the average relative humidity is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 3.6 days and typically collects 2mm (0.08") of precipitation.Daylight
The average length of the day in September in San Clemente is 12h and 7min.On the first day of the month, sunrise is at 06:18 and sunset at 18:24. On the last day of September, in San Clemente, sunrise is at 06:08 and sunset at 18:15 -05.
Sunshine
In September, the average sunshine in San Clemente is 6.5h.UV index
The months with the highest UV index in San Clemente, Ecuador, are January through July, September, October and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in San Clemente?
What is the average humidity in September in San Clemente?
What is the driest month in San Clemente?
How much does it rain in San Clemente in September?
How many hours of daylight does San Clemente have in September?
When are sunrise and sunset in September in San Clemente?
How long on average sun shines in September in San Clemente?
What are the months with the highest UV index in San Clemente?
What is the UV index reading in September in San Clemente?
Average temperature in September
San Clemente, Ecuador
- Average high temperature in September: 26.4°C
The warmest month (with the highest average high temperature) is March (28.3°C).
The month with the lowest average high temperature is August (26.1°C).
- Average low temperature in September: 20.8°C
The month with the highest average low temperature is February (23.3°C).
The coldest month (with the lowest average low temperature) is August (20.3°C).
Average pressure in September
San Clemente, Ecuador
- Average pressure in September: 1011.8mbar
The months with the highest atmospheric pressure are August, September and October (1011.8mbar).
The month with the lowest atmospheric pressure is February (1010.5mbar).
Average wind speed in September
San Clemente, Ecuador
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is November (13.9km/h).
The calmest month (with the lowest average wind speed) is March (7.5km/h).
Average humidity in September
San Clemente, Ecuador
- Average humidity in September: 79%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
San Clemente, Ecuador
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is January (88mm).
The driest month (with the least rainfall) is September (2mm).
Average rainfall days in September
San Clemente, Ecuador
- Average rainfall days in September: 3.6 days
The month with the highest number of rainy days is February (20.4 days).
The month with the least rainy days is September (3.6 days).
Average daylight in September /
Average sunshine in September
San Clemente, Ecuador
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 6min).
- Average sunshine in September: 6h and 3min
The month with the most sunshine is May (Average sunshine: 7h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
San Clemente, Ecuador
- Average sunshine days in September: 24.4 days
The month with the most sunshine days is August (25.9 days).
The month with the least sunshine days is February (6.5 days).
Average UV index in September
San Clemente, Ecuador
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, September, October and December (UV index 6).
The months with the lowest UV index are August and November (UV index 5).
Average cloud cover in September
San Clemente, Ecuador
- Average cloud cover in September: 48
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is May (Cloud cover 45).
Average visibility in September
San Clemente, Ecuador
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
