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 initiation of September records an average high-temperature of a still warm 29.5°C (85.1°F), displaying a near consistency with the previous month. September nights observe an average temperature dip to a still warm 23.4°C (74.1°F).Heat index
During September, the heat index is estimated at a tropical 33°C (91.4°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
In September, the average relative humidity is 67%.Rainfall
In September, the rain falls for 4.5 days. Throughout September, 6mm (0.24") of precipitation is accumulated. In Ankalalobe, during the entire year, the rain falls for 161.7 days and collects up to 952mm (37.48") of precipitation.Daylight
The average length of the day in September is 11h and 59min.On the first day of the month, sunrise is at 06:07 and sunset at 17:52. On the last day of September, sunrise is at 05:42 and sunset at 17:57 EAT.
Sunshine
In Ankalalobe, the average sunshine in September is 9.1h.UV index
The months with the highest UV index are January through May, August through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 7 during September leads to these instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
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 is the sunrise / sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Ankalalobe, Madagascar
- Average high temperature in September: 29.5°C
The warmest months (with the highest average high temperature) are November and December (31.4°C).
The month with the lowest average high temperature is July (27.8°C).
- Average low temperature in September: 23.4°C
The month with the highest average low temperature is December (26.3°C).
The coldest month (with the lowest average low temperature) is July (21.5°C).
Average pressure in September
Ankalalobe, Madagascar
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is July (1018.3mbar).
The month with the lowest atmospheric pressure is January (1009.2mbar).
Average wind speed in September
Ankalalobe, Madagascar
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is October (14.2km/h).
The calmest month (with the lowest average wind speed) is March (10.9km/h).
Average humidity in September
Ankalalobe, Madagascar
- Average humidity in September: 67%
The months with the highest relative humidity are January, February and March (78%).
The month with the lowest relative humidity is July (64%).
Average rainfall in September
Ankalalobe, Madagascar
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is January (315mm).
The driest months (with the least rainfall) are July and August (4mm).
Average rainfall days in September
Ankalalobe, Madagascar
- Average rainfall days in September: 4.5 days
The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is July (3.7 days).
Average daylight in September /
Average sunshine in September
Ankalalobe, Madagascar
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is October (Average sunshine: 11h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 24min).
Average sunshine days in September
Ankalalobe, Madagascar
- Average sunshine days in September: 24.7 days
The month with the most sunshine days is July (26.9 days).
The month with the least sunshine days is January (1.5 days).
Average UV index in September
Ankalalobe, Madagascar
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 7).
The months with the lowest UV index are June and July (UV index 6).
Average cloud cover in September
Ankalalobe, Madagascar
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in September
Ankalalobe, Madagascar
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
