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
The onset of September manifests an average high-temperature of a still moderately hot 25.5°C (77.9°F), demonstrating a minor variation from the preceding month. During September, the nighttime temperature averages of 14.2°C (57.6°F).Humidity
With an average relative humidity of 75%, September is the least humid month.Rainfall
In Monteiro Lobato, in September, during 14.2 rainfall days, 43mm (1.69") of precipitation is typically accumulated. In Monteiro Lobato, during the entire year, the rain falls for 223.8 days and collects up to 1014mm (39.92") of precipitation.Daylight
In September, the average length of the day is 11h and 58min.On the first day of the month, sunrise is at 06:12 and sunset at 17:53. On the last day of September, sunrise is at 05:44 and sunset at 18:02 -03.
Sunshine
With an average of 8.6h of sunshine, September has the most sunshine of the year.UV index
February through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 5 in September translates into this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the least humid month?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
What month has the most sunshine?
How many hours of sunshine does Monteiro Lobato have in September?
What are the months with the lowest UV index in Monteiro Lobato?
What is the UV index reading in September?
Average temperature in September
Monteiro Lobato, Brazil
- Average high temperature in September: 25.5°C
The warmest month (with the highest average high temperature) is February (27.3°C).
The month with the lowest average high temperature is June (21.4°C).
- Average low temperature in September: 14.2°C
The month with the highest average low temperature is January (17.8°C).
The coldest month (with the lowest average low temperature) is July (11.8°C).
Average pressure in September
Monteiro Lobato, Brazil
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1012.2mbar).
Average wind speed in September
Monteiro Lobato, Brazil
- Average wind speed in September: 7.1km/h
The windiest months (with the highest average wind speed) are September and October (7.1km/h).
The calmest months (with the lowest average wind speed) are February and April (5.7km/h).
Average humidity in September
Monteiro Lobato, Brazil
- Average humidity in September: 75%
The months with the highest relative humidity are March and April (88%).
The month with the lowest relative humidity is September (75%).
Average rainfall in September
Monteiro Lobato, Brazil
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is January (195mm).
The driest month (with the least rainfall) is August (24mm).
Average rainfall days in September
Monteiro Lobato, Brazil
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is January (27.9 days).
The month with the least rainy days is August (7.9 days).
Average daylight in September /
Average sunshine in September
Monteiro Lobato, 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: 8h and 4min
The month with the most sunshine is September (Average sunshine: 8h and 36min).
The month with the least sunshine is April (Average sunshine: 7h and 18min).
Average sunshine days in September
Monteiro Lobato, Brazil
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is August (20.4 days).
The month with the least sunshine days is December (1.9 days).
Average UV index in September
Monteiro Lobato, Brazil
- Average UV index in September: 5
The month with the highest UV index is January (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in September
Monteiro Lobato, Brazil
- Average cloud cover in September: 35
The months with the most cloud cover are March and April (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Monteiro Lobato, Brazil
- Average visibility in September: 8km
The months with the highest visibility are July, August, September and October (8km).
The months with the lowest visibility are March, April and May (6km).
