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
Transitioning into September, Botafogo experiences an average high-temperature of a still moderately hot 25°C (77°F), marking a minor shift from the preceding month. During the nights in September, an average low-temperature of 19.4°C (66.9°F) is observed in Botafogo.Humidity
In September, the average relative humidity in Botafogo, Brazil, is 78%.Rainfall
In September, in Botafogo, the rain falls for 13.7 days. Throughout September, 47mm (1.85") of precipitation is accumulated. Throughout the year, in Botafogo, Brazil, there are 192.5 rainfall days, and 812mm (31.97") of precipitation is accumulated.Daylight
The average length of the day in September in Botafogo, Brazil, is 11h and 58min.On the first day of the month, sunrise is at 06:02 and sunset at 17:42. On the last day of September, in Botafogo, sunrise is at 05:33 and sunset at 17:51 -03.
Sunshine
The average sunshine in September is 7.9h.UV index
With an average maximum UV index of 5, September is the month with the lowest UV index in Botafogo. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What are September temperatures in Botafogo?
What is the average humidity in September in Botafogo?
How many days does it rain in September in Botafogo?
What is the average length of the day in September in Botafogo?
When are sunrise and sunset in September in Botafogo?
How many hours of sunshine does Botafogo have in September?
When is the lowest UV index in Botafogo?
How high is the UV index in September in Botafogo?
Average temperature in September
Botafogo, Brazil
- Average high temperature in September: 25°C
The warmest month (with the highest average high temperature) is February (29.7°C).
The month with the lowest average high temperature is July (24°C).
- Average low temperature in September: 19.4°C
The month with the highest average low temperature is January (23.7°C).
The coldest month (with the lowest average low temperature) is August (18.5°C).
Average pressure in September
Botafogo, Brazil
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is December (1011.9mbar).
Average wind speed in September
Botafogo, Brazil
- Average wind speed in September: 11.3km/h
The windiest months (with the highest average wind speed) are August and September (11.3km/h).
The calmest month (with the lowest average wind speed) is March (8.7km/h).
Average humidity in September
Botafogo, Brazil
- Average humidity in September: 78%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Botafogo, Brazil
- Average rainfall in September: 47mm
The wettest month (with the highest rainfall) is November (119mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days in September
Botafogo, Brazil
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is March (22.7 days).
The month with the least rainy days is July (9.3 days).
Average daylight in September /
Average sunshine in September
Botafogo, 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 42min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is February (Average sunshine: 8h and 48min).
The month with the least sunshine is October (Average sunshine: 7h and 30min).
Average sunshine days in September
Botafogo, Brazil
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is December (4.8 days).
Average UV index in September
Botafogo, Brazil
- Average UV index in September: 5
The month with the highest UV index is January (UV index 7).
The month with the lowest UV index is September (UV index 5).
Average cloud cover in September
Botafogo, Brazil
- Average cloud cover in September: 34
The month with the most cloud cover is November (Cloud cover 46).
The month with the least cloud cover is February (Cloud cover 28).
Average visibility in September
Botafogo, Brazil
- Average visibility in September: 10km
The months with the highest visibility are February, May, June, July, August and September (10km).
The months with the lowest visibility are January, March, April, October, November and December (9km).
Botafogo, Brazil
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