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
In Olímpio Noronha, the months of September and October register the highest average temperatures, peaking at 25.5°C (77.9°F).Humidity
The least humid month in Olímpio Noronha is September, with an average relative humidity of 71%.Rainfall
In Olímpio Noronha, in September, during 10.9 rainfall days, 41mm (1.61") of precipitation is typically accumulated. Throughout the year, in Olímpio Noronha, there are 193.7 rainfall days, and 923mm (36.34") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 59min.On the first day of September in Olímpio Noronha, sunrise is at 06:10 and sunset at 17:51. On the last day of the month, sunrise is at 05:42 and sunset at 17:59 -03.
Sunshine
With an average of 9.2h of sunshine, September has the most sunshine of the year.UV index
January through May, July through December, with an average maximum UV index of 5, are months with the highest UV index in Olímpio Noronha. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in Olímpio Noronha?
What is the temperature in September in Olímpio Noronha?
What is the least humid month in Olímpio Noronha?
What is the average humidity in September in Olímpio Noronha?
How many days does it rain in September in Olímpio Noronha?
How many hours of daylight does Olímpio Noronha have in September?
What time are sunrise and sunset in September in Olímpio Noronha?
What month has the most sunshine in Olímpio Noronha?
How long on average sun shines in September in Olímpio Noronha?
What are the months with the highest UV index in Olímpio Noronha?
What is the UV index intensity in September in Olímpio Noronha?
Average temperature in September
Olímpio Noronha, Brazil
- Average high temperature in September: 25.5°C
The warmest months (with the highest average high temperature) are September and October (25.5°C).
The month with the lowest average high temperature is June (20.4°C).
- Average low temperature in September: 13.1°C
The month with the highest average low temperature is January (16.7°C).
The coldest month (with the lowest average low temperature) is July (10.3°C).
Average pressure in September
Olímpio Noronha, Brazil
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is July (1020.8mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).
Average wind speed in September
Olímpio Noronha, Brazil
- Average wind speed in September: 7.5km/h
The windiest months (with the highest average wind speed) are September and October (7.5km/h).
The calmest month (with the lowest average wind speed) is February (5.8km/h).
Average humidity in September
Olímpio Noronha, Brazil
- Average humidity in September: 71%
The months with the highest relative humidity are March and April (88%).
The month with the lowest relative humidity is September (71%).
Average rainfall in September
Olímpio Noronha, Brazil
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is January (175mm).
The driest month (with the least rainfall) is June (12mm).
Average rainfall days in September
Olímpio Noronha, Brazil
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is December (24.7 days).
The month with the least rainy days is August (6.2 days).
Average daylight in September /
Average sunshine in September
Olímpio Noronha, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in September
Olímpio Noronha, Brazil
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is August (21.4 days).
The month with the least sunshine days is November (4.3 days).
Average UV index in September
Olímpio Noronha, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 5).
The month with the lowest UV index is June (UV index 4).
Average cloud cover in September
Olímpio Noronha, Brazil
- Average cloud cover in September: 27
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Olímpio Noronha, Brazil
- Average visibility in September: 9km
The months with the highest visibility are August and September (9km).
The months with the lowest visibility are January, March, April and May (6km).
