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
Rio Fortuna experiences an average high-temperature of a still agreeable 22.3°C (72.1°F) in September, subtly different from August's 21.5°C (70.7°F). In Rio Fortuna, the nighttime temperature averages to a mild 13.9°C (57°F) during September.Humidity
The average relative humidity in September is 82%.Rainfall
In Rio Fortuna, during September, the rain falls for 13 days and regularly aggregates up to 64mm (2.52") of precipitation. Throughout the year, there are 172.3 rainfall days, and 881mm (34.69") of precipitation is accumulated.Daylight
In Rio Fortuna, the average length of the day in September is 11h and 56min.On the first day of September in Rio Fortuna, sunrise is at 06:29 and sunset at 18:03. On the last day of the month, sunrise is at 05:55 and sunset at 18:16 -03.
Sunshine
In Rio Fortuna, the average sunshine in September is 7h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Rio Fortuna?
What is the average humidity in September in Rio Fortuna?
How much does it rain in Rio Fortuna in September?
How many hours of daylight does Rio Fortuna have in September?
When is the sunrise / sunset in September in Rio Fortuna?
How many hours of sunshine does Rio Fortuna have in September?
What is the UV index intensity in September in Rio Fortuna?
Average temperature in September
Rio Fortuna, Brazil
- Average high temperature in September: 22.3°C
The warmest month (with the highest average high temperature) is February (28.8°C).
The month with the lowest average high temperature is July (19.8°C).
- Average low temperature in September: 13.9°C
The month with the highest average low temperature is February (19.9°C).
The coldest month (with the lowest average low temperature) is July (11.5°C).
Average pressure in September
Rio Fortuna, Brazil
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is December (1012.1mbar).
Average wind speed in September
Rio Fortuna, Brazil
- Average wind speed in September: 10.1km/h
The windiest months (with the highest average wind speed) are October and November (10.7km/h).
The calmest month (with the lowest average wind speed) is February (8.2km/h).
Average humidity in September
Rio Fortuna, Brazil
- Average humidity in September: 82%
The months with the highest relative humidity are March, May and June (83%).
The months with the lowest relative humidity are November and December (80%).
Average rainfall in September
Rio Fortuna, Brazil
- Average rainfall in September: 64mm
The wettest month (with the highest rainfall) is January (106mm).
The driest month (with the least rainfall) is November (47mm).
Average rainfall days in September
Rio Fortuna, Brazil
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is February (19.1 days).
The month with the least rainy days is June (10.8 days).
Average daylight in September /
Average sunshine in September
Rio Fortuna, Brazil
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is June (Average sunshine: 7h and 30min).
The month with the least sunshine is October (Average sunshine: 6h and 54min).
Average sunshine days in September
Rio Fortuna, Brazil
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is June (18.2 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in September
Rio Fortuna, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March and December (UV index 6).
The month with the lowest UV index is July (UV index 4).
Average cloud cover in September
Rio Fortuna, Brazil
- Average cloud cover in September: 45
The months with the most cloud cover are January and October (Cloud cover 48).
The months with the least cloud cover are June and August (Cloud cover 37).
Average visibility in September
Rio Fortuna, Brazil
- Average visibility in September: 8km
The months with the highest visibility are July, August and November (9km).
The months with the lowest visibility are January, February, March, April, May, June, September, October and December (8km).
