September weather forecastAmbanja, Madagascar

September

Weather in September

Ambanja's September weather reveals the city moving gradually towards the hot and wet season, despite minimal changes in the rainfall, which stands at just 22mm (0.87"). With the maximum temperature starting to rise to 26.3°C (79.3°F), a gradual warming trend is in progress. The amount of sunshine increases to 9.6 hours per day, indicating an extended period of daylight. Further, the wind speed increases slightly from 10.7km/h (6.6mph) in August to 11.1km/h (6.9mph) in September. Despite being the transition month, September remains largely dry and windy, setting the stage for the wet months to follow.

Temperature

Ambanja measures an average high-temperature of a still moderately hot 26.3°C (79.3°F) in September, nearly consistent with the preceding month. Throughout September in Ambanja, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 22.5°C (72.5°F).

Humidity

In September, the average relative humidity in Ambanja is 74%.

Rainfall

September is the month with the least rainfall. Rain falls for 18.5 days and accumulates 22mm (0.87") of precipitation.

Daylight

The average length of the day in September is 12h and 2min.
On the first day of September in Ambanja, sunrise is at 05:50 and sunset at 17:41. On the last day of the month, sunrise is at 05:29 and sunset at 17:42 EAT.

Sunshine

In Ambanja, the average sunshine in September is 9.6h.

UV index

The months with the lowest UV index are January, June through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

September temperatures in Ambanja, Madagascar, vary between a high-temperature of 26.3°C (79.3°F) and a low-temperature of 22.5°C (72.5°F). In May, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 31°C (87.8°F).

The average relative humidity in September in Ambanja, Madagascar, is 74%.

The month with the least rainfall is September, when the rain falls for 18.5 days and typically collects 22mm (0.87") of precipitation.

In Ambanja, Madagascar, in September, during 18.5 rainfall days, 22mm (0.87") of precipitation is typically accumulated.

In September, the average day length in Ambanja, Madagascar, is 12h and 2min.

On the first day of September in Ambanja, Madagascar, sunrise is at 05:50 and sunset at 17:41. On the last day of the month, sunrise is at 05:29 and sunset at 17:42 EAT.

In Ambanja, the average sunshine duration in September is 9.6h.

January, June through September, with an average maximum UV index of 6, are months with the lowest UV index in Ambanja, Madagascar.

In September, the average daily maximum UV index in Ambanja, Madagascar, is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ambanja, Madagascar

  • Average high temperature in September: 26.3°C

The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is August (25.8°C).

  • Average low temperature in September: 22.5°C

The month with the highest average low temperature is January (26.1°C).
The coldest month (with the lowest average low temperature) is July (22.2°C).

Average pressure in September
Ambanja, Madagascar

  • Average pressure in September: 1016.5mbar

The month with the highest atmospheric pressure is August (1017mbar).
The month with the lowest atmospheric pressure is February (1010.7mbar).

Average wind speed in September
Ambanja, Madagascar

  • Average wind speed in September: 11.1km/h

The windiest month (with the highest average wind speed) is January (11.8km/h).
The calmest month (with the lowest average wind speed) is April (8.8km/h).

Average humidity in September
Ambanja, Madagascar

  • Average humidity in September: 74%

The months with the highest relative humidity are January, February and March (78%).
The month with the lowest relative humidity is July (72%).

Average rainfall in September
Ambanja, Madagascar

  • Average rainfall in September: 22mm

The wettest month (with the highest rainfall) is January (417mm).
The driest month (with the least rainfall) is September (22mm).

Average rainfall days in September
Ambanja, Madagascar

  • Average rainfall days in September: 18.5 days

The month with the highest number of rainy days is March (29.8 days).
The month with the least rainy days is June (18.3 days).

Average daylight in September /
Average sunshine in September
Ambanja, Madagascar

  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 18min).

  • Average sunshine in September: 9h and 36min

The month with the most sunshine is December (Average sunshine: 10h and 48min).
The month with the least sunshine is June (Average sunshine: 7h and 24min).

Average sunshine days in September
Ambanja, Madagascar

  • Average sunshine days in September: 6.4 days

The month with the most sunshine days is July (9.2 days).
The months with the least sunshine days are January and April (0.8 days).

Average UV index in September
Ambanja, Madagascar

  • Average UV index in September: 6

The months with the highest UV index are February, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are January, June, July, August and September (UV index 6).

Average cloud cover in September
Ambanja, Madagascar

  • Average cloud cover in September: 25

The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are May and June (Cloud cover 23).

Average visibility in September
Ambanja, Madagascar

  • Average visibility in September: 10km

The months with the highest visibility are April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March and December (9km).