September weather forecastAnjajavy, Madagascar
September
Weather in September
September in Anjajavy exhibits the gradual farewell to the dry season. With a slight increment in rainfall to 6mm (0.24") and an uptick in the average minimum and maximum temperatures, the weather hints at the forthcoming change. It not only extends the daylight by a small fraction but also enriches the sea temperature slightly, encouraging sea-related adventures. Amid the mirrored weather conditions of the bygone month, it makes the transition subtle and the weather enjoyable.Temperature
Anjajavy marks the onset of September with an average high-temperature of a tropical 30.7°C (87.3°F), subtly divergent from August's 29.8°C (85.6°F). Throughout September, Anjajavy records an average temperature of 20.9°C (69.6°F) at night.Heat index
The heat index in September is evaluated at a fiery hot 35°C (95°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In September, the average relative humidity in Anjajavy is 64%.Rainfall
In Anjajavy, in September, it is raining for 5.5 days, with typically 6mm (0.24") of accumulated precipitation. In Anjajavy, during the entire year, the rain falls for 207.2 days and collects up to 1328mm (52.28") of precipitation.Sea temperature
July through September, with an average sea temperature of 26°C (78.8°F), are months with the coldest seawater.Note: For any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are deemed excellent and extremely satisfying for enduring periods.
Daylight
In September, the average length of the day in Anjajavy is 12h and 1min.On the first day of September, sunrise is at 05:56 and sunset at 17:45. On the last day of the month, sunrise is at 05:34 and sunset at 17:47 EAT.
Sunshine
In Anjajavy, the average sunshine in September is 9.9h.UV index
The months with the highest UV index are January through April, August through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 7 in September translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Enhance your sun protection with tightly woven, yet airy clothing. Notice! The Sun's UV exposure elevates with sand and water reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Anjajavy, 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
Anjajavy, 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
Anjajavy, 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
Anjajavy, 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
Anjajavy, 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
Anjajavy, 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 sea temperature in September
Anjajavy, Madagascar
- Average sea temperature in September: 26°C
The best months for swimming (with the highest average sea temperature) are January, February, March, April, May and December (29°C).
The coldest months (with the lowest average sea temperature) are July, August and September (26°C).
Average daylight in September /
Average sunshine in September
Anjajavy, 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 18min).
- 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
Anjajavy, 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
Anjajavy, 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
Anjajavy, 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
Anjajavy, 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).





