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 arrival of September signals a slight increase in the average high-temperature, moving from 25.1°C (77.2°F) in August to a still warm 28.2°C (82.8°F). A dramatic downturn marks the September nights, with lows averaging at a refreshing 14.6°C (58.3°F).Heat index
The heat index for September is appraised at 29°C (84.2°F). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
September and October, with an average relative humidity of 51%, are the least humid months.Rainfall
In September, the rain falls for 2.8 days. Throughout September, 6mm (0.24") of precipitation is accumulated. In Ambalasoa, during the entire year, the rain falls for 142.5 days and collects up to 647mm (25.47") 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 06:05 and sunset at 17:45. On the last day of September, sunrise is at 05:36 and sunset at 17:54 EAT.
Sunshine
In September, the average sunshine is 9.1h.UV index
The months with the highest UV index in Ambalasoa are January through March, September through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Ambalasoa in September?
What is the least humid month?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What are the months with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Ambalasoa, Madagascar
- Average high temperature in September: 28.2°C
The warmest month (with the highest average high temperature) is November (30.5°C).
The month with the lowest average high temperature is July (22.6°C).
- Average low temperature in September: 14.6°C
The month with the highest average low temperature is December (19.7°C).
The coldest month (with the lowest average low temperature) is July (11.4°C).
Average pressure in September
Ambalasoa, Madagascar
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is July (1021.1mbar).
The month with the lowest atmospheric pressure is January (1010.8mbar).
Average wind speed in September
Ambalasoa, Madagascar
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is July (13.2km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).
Average humidity in September
Ambalasoa, Madagascar
- Average humidity in September: 51%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are September and October (51%).
Average rainfall in September
Ambalasoa, Madagascar
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is January (192mm).
The driest months (with the least rainfall) are July and August (2mm).
Average rainfall days in September
Ambalasoa, Madagascar
- Average rainfall days in September: 2.8 days
The month with the highest number of rainy days is January (24.9 days).
The months with the least rainy days are July and August (2.4 days).
Average daylight in September /
Average sunshine in September
Ambalasoa, Madagascar
- 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: 9h and 1min
The month with the most sunshine is November (Average sunshine: 11h and 42min).
The month with the least sunshine is April (Average sunshine: 7h and 18min).
Average sunshine days in September
Ambalasoa, Madagascar
- Average sunshine days in September: 26.7 days
The month with the most sunshine days is July (27.9 days).
The month with the least sunshine days is January (5.5 days).
Average UV index in September
Ambalasoa, Madagascar
- Average UV index in September: 6
The months with the highest UV index are January, February, March, September, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July and August (UV index 5).
Average cloud cover in September
Ambalasoa, Madagascar
- Average cloud cover in September: 10
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is September (Cloud cover 10).
Average visibility in September
Ambalasoa, Madagascar
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April and May (9km).
