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
In September, Caiana experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 23°C (73.4°F) in August to a still moderately hot 24.8°C (76.6°F). In Caiana, an average nighttime temperature of 14.3°C (57.7°F) is expected during September.Humidity
September is the least humid month in Caiana, Brazil, with an average relative humidity of 77%.Rainfall
In Caiana, during September, the rain falls for 13.2 days and regularly aggregates up to 43mm (1.69") of precipitation. Throughout the year, there are 218.5 rainfall days, and 869mm (34.21") of precipitation is accumulated.Daylight
In September, the average length of the day in Caiana is 11h and 59min.On the first day of the month, sunrise is at 05:55 and sunset at 17:39. On the last day of September, sunrise is at 05:29 and sunset at 17:45 -03.
Sunshine
With an average of 8.2h of sunshine, September has the most sunshine of the year in Caiana.UV index
January through April, June through October and December, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What is the temperature in September in Caiana?
What is the least humid month in Caiana?
What is the average humidity in September in Caiana?
How many days does it rain in September in Caiana?
What is the average length of the day in September in Caiana?
When are sunrise and sunset in September in Caiana?
What month has the most sunshine in Caiana?
How long on average sun shines in September in Caiana?
What are the months with the highest UV index in Caiana?
How high is the UV index in September in Caiana?
Average temperature in September
Caiana, Brazil
- Average high temperature in September: 24.8°C
The warmest month (with the highest average high temperature) is February (25.8°C).
The month with the lowest average high temperature is June (21.6°C).
- Average low temperature in September: 14.3°C
The month with the highest average low temperature is January (17.7°C).
The coldest month (with the lowest average low temperature) is July (12.3°C).
Average pressure in September
Caiana, Brazil
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is July (1021.1mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).
Average wind speed in September
Caiana, Brazil
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is October (8km/h).
The calmest months (with the lowest average wind speed) are April and May (5.5km/h).
Average humidity in September
Caiana, Brazil
- Average humidity in September: 77%
The months with the highest relative humidity are March, April and December (90%).
The month with the lowest relative humidity is September (77%).
Average rainfall in September
Caiana, Brazil
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is December (140mm).
The driest month (with the least rainfall) is July (15mm).
Average rainfall days in September
Caiana, Brazil
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is March (25 days).
The month with the least rainy days is August (10.3 days).
Average daylight in September /
Average sunshine in September
Caiana, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is September (Average sunshine: 8h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in September
Caiana, Brazil
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is August (16.8 days).
The month with the least sunshine days is December (4.4 days).
Average UV index in September
Caiana, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, June, July, August, September, October and December (UV index 5).
The months with the lowest UV index are May and November (UV index 4).
Average cloud cover in September
Caiana, Brazil
- Average cloud cover in September: 44
The months with the most cloud cover are November and December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Caiana, Brazil
- Average visibility in September: 8km
The months with the highest visibility are August, September and October (8km).
The months with the lowest visibility are January, February, March, April, May, June and December (6km).
Caiana, Brazil
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