September weather forecastAntonibe, Madagascar
September
Weather in September
September, the first month of the spring in Antonibe, is a tropical month, with an average temperature fluctuating between 30.7°C (87.3°F) and 20.9°C (69.6°F).Temperature
The transition into September shows a subtle variation to a hot 30.7°C (87.3°F) from August's 29.8°C (85.6°F) in the average high-temperature. Antonibe's nighttime temperature in September falls to an average of 20.9°C (69.6°F).Heat index
September's mean heat index is calculated to be a torrid 35°C (95°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In Antonibe, the average relative humidity in September is 64%.Rainfall
In Antonibe, during September, the rain falls for 5.5 days and regularly aggregates up to 6mm (0.24") of precipitation. In Antonibe, during the entire year, the rain falls for 207.2 days and collects up to 1328mm (52.28") of precipitation.Daylight
In Antonibe, the average length of the day in September is 12h and 1min.On the first day of September, sunrise is at 05:55 and sunset at 17:45. On the last day of the month, sunrise is at 05:33 and sunset at 17:47 EAT.
Sunshine
In Antonibe, Madagascar, the average sunshine in September is 9.9h.UV index
January through April, August through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 7 during September translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Antonibe, Madagascar
- Average high temperature in September: 30.7°C
The warmest months (with the highest average high temperature) are October and November (31.5°C).
The month with the lowest average high temperature is July (29.3°C).
- Average low temperature in September: 20.9°C
The months with the highest average low temperature are November and December (24.9°C).
The coldest month (with the lowest average low temperature) is July (20.3°C).
Average pressure in September
Antonibe, Madagascar
- Average pressure in September: 1016.7mbar
The months with the highest atmospheric pressure are July and August (1017.4mbar).
The month with the lowest atmospheric pressure is February (1010.8mbar).
Average wind speed in September
Antonibe, Madagascar
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is July (13.3km/h).
The calmest month (with the lowest average wind speed) is March (8.1km/h).
Average humidity in September
Antonibe, Madagascar
- Average humidity in September: 64%
The months with the highest relative humidity are February and March (82%).
The month with the lowest relative humidity is July (63%).
Average rainfall in September
Antonibe, Madagascar
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is January (399mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in September
Antonibe, Madagascar
- Average rainfall days in September: 5.5 days
The month with the highest number of rainy days is January (29.6 days).
The month with the least rainy days is July (3.8 days).
Average daylight in September /
Average sunshine in September
Antonibe, Madagascar
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in September: 9h and 54min
The month with the most sunshine is December (Average sunshine: 10h and 54min).
The months with the least sunshine are June and July (Average sunshine: 7h and 36min).
Average sunshine days in September
Antonibe, Madagascar
- Average sunshine days in September: 23.3 days
The month with the most sunshine days is July (26.7 days).
The month with the least sunshine days is February (0.8 days).
Average UV index in September
Antonibe, Madagascar
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, August, September, October, November and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 6).
Average cloud cover in September
Antonibe, Madagascar
- Average cloud cover in September: 13
The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are June and September (Cloud cover 13).
Average visibility in September
Antonibe, Madagascar
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February and March (9km).
