September weather forecastNosy-Varika, Madagascar
September
Weather in September
September embarks on a warming trend as the highs rise to 24.2°C (75.6°F). As the sea temperature achieves a steady climb laying at 24.3°C (75.7°F) and cloud cover decreases to 34%, it creates the perfect conditions for clear, sunny days. A decrease in pressure to 1021.1 millibars, along with a rise in wind speeds to 13.9km/h (8.6mph), brings a unique dynamic to the weather pattern. It also marks the lowest rainy season, offering an opportunity to explore Nosy-Varika's outdoor attractions in splendid weather. September's comfortable conditions make it an incredible time for vacationers seeking to experience the city's diverse ecotourism.Temperature
The advent of September brings an average high-temperature of a still warm 24.2°C (75.6°F), almost identical to the preceding month. Nosy-Varika, during the nights of September, averages a temperature close to its daytime high, at a refreshing 19.8°C (67.6°F).Humidity
August and September, with an average relative humidity of 78%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 14.3 days and typically collects 37mm (1.46") of precipitation.Sea temperature
The month with the coldest seawater is September, with an average sea temperature of 24.3°C (75.7°F).Note: Individual cold sensitivities, influenced by sunshine, wind, and the ambient temperature, play a role in finding a swim in 24.3°C (75.7°F) water pleasant. (Olympic swimming events mandate water temperatures from 25°C (77°F) to 28°C (82.4°F).)
Daylight
The average length of the day in September is 11h and 59min.On the first day of September, sunrise is at 05:54 and sunset at 17:37. On the last day of the month, sunrise is at 05:27 and sunset at 17:43 EAT.
Sunshine
In Nosy-Varika, Madagascar, the average sunshine in September is 8.3h.UV index
The months with the lowest UV index are March through October, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 6 suggests these recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Note! Reflective surfaces like sand and water heighten the UV radiation levels.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nosy-Varika, Madagascar
- Average high temperature in September: 24.2°C
The warmest month (with the highest average high temperature) is January (28.6°C).
The month with the lowest average high temperature is July (22.8°C).
- Average low temperature in September: 19.8°C
The month with the highest average low temperature is January (24.5°C).
The coldest month (with the lowest average low temperature) is July (18.8°C).
Average pressure in September
Nosy-Varika, Madagascar
- Average pressure in September: 1021.1mbar
The month with the highest atmospheric pressure is July (1022.4mbar).
The month with the lowest atmospheric pressure is January (1011.8mbar).
Average wind speed in September
Nosy-Varika, Madagascar
- Average wind speed in September: 13.9km/h
The windiest month (with the highest average wind speed) is October (16.3km/h).
The calmest months (with the lowest average wind speed) are May and June (10.6km/h).
Average humidity in September
Nosy-Varika, Madagascar
- Average humidity in September: 78%
The month with the highest relative humidity is March (82%).
The months with the lowest relative humidity are August and September (78%).
Average rainfall in September
Nosy-Varika, Madagascar
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is March (254mm).
The driest month (with the least rainfall) is September (37mm).
Average rainfall days in September
Nosy-Varika, Madagascar
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is March (27.1 days).
The month with the least rainy days is September (14.3 days).
Average sea temperature in September
Nosy-Varika, Madagascar
- Average sea temperature in September: 24.3°C
The best months for swimming (with the highest average sea temperature) are February and March (28.8°C).
The coldest month (with the lowest average sea temperature) is September (24.3°C).
Average daylight in September /
Average sunshine in September
Nosy-Varika, Madagascar
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in September
Nosy-Varika, Madagascar
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is September (12.5 days).
The month with the least sunshine days is January (1.7 days).
Average UV index in September
Nosy-Varika, Madagascar
- Average UV index in September: 6
The months with the highest UV index are January, February, November and December (UV index 7).
The months with the lowest UV index are March, April, May, June, July, August, September and October (UV index 6).
Average cloud cover in September
Nosy-Varika, Madagascar
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in September
Nosy-Varika, Madagascar
- Average visibility in September: 10km
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and March (9km).





