September weather forecastFalelima, Samoa

September

Weather in September

September sees the lowest rainfall for the year in Falelima, with 102mm (4.02") spread across 21 days. Despite the reduced rainfall, the wind speed lowers slightly from August to 25.5km/h (15.8mph). The days are significantly sunnier, brightening the otherwise moderately cloudy city. However, the temperatures remain consistent with the rest of the year, contributing to a constant level of humidity. Falelima's weather in September indicates a shift from the dry to the wet season.

Temperature

Falelima witnesses its lowest temperatures during August and September, when the average high-temperature reaches 26.3°C (79.3°F).

Humidity

The most humid month is September, with an average relative humidity of 82%.

Rainfall

The month with the least rainfall is September, when the rain falls for 21 days and typically collects 102mm (4.02") of precipitation.

Daylight

In September, the average length of the day is 12h and 2min.
On the first day of September, sunrise is at 06:34 and sunset at 18:26. On the last day of the month, sunrise is at 06:13 and sunset at 18:27 +13.

Sunshine

In September, the average sunshine in Falelima is 7.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 7 in September translates into these instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

August and September bring Falelima's average lowest temperatures, reaching a high of 26.3°C (79.3°F).

In September, in Falelima, the average high-temperature is 26.3°C (79.3°F), and the average low-temperature is 25.2°C (77.4°F). In May, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 31°C (87.8°F).

September is the most humid month, with an average relative humidity of 82%.

The average relative humidity in September in Falelima is 82%.

September is the month with the least rainfall. Rain falls for 21 days and accumulates 102mm (4.02") of precipitation.

In Falelima, during September, the rain falls for 21 days and regularly aggregates up to 102mm (4.02") of precipitation.

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

On the first day of September, sunrise is at 06:34 and sunset at 18:26. On the last day of the month, sunrise is at 06:13 and sunset at 18:27 +13.

In Falelima, Samoa, the average sunshine duration in September is 7.9h.

The months with the highest UV index are January through December, with an average maximum UV index of 7.

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's 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
Falelima, Samoa

  • Average high temperature in September: 26.3°C

The warmest month (with the highest average high temperature) is April (27.5°C).
The months with the lowest average high temperature are August and September (26.3°C).

  • Average low temperature in September: 25.2°C

The month with the highest average low temperature is April (26.4°C).
The coldest months (with the lowest average low temperature) are July, August and September (25.2°C).

Average pressure in September
Falelima, Samoa

  • Average pressure in September: 1012.2mbar

The month with the highest atmospheric pressure is September (1012.2mbar).
The month with the lowest atmospheric pressure is January (1007.4mbar).

Average wind speed in September
Falelima, Samoa

  • Average wind speed in September: 25.5km/h

The windiest month (with the highest average wind speed) is July (26.7km/h).
The calmest month (with the lowest average wind speed) is March (16.5km/h).

Average humidity in September
Falelima, Samoa

  • Average humidity in September: 82%

The month with the highest relative humidity is September (82%).
The months with the lowest relative humidity are March and April (79%).

Average rainfall in September
Falelima, Samoa

  • Average rainfall in September: 102mm

The wettest month (with the highest rainfall) is January (459mm).
The driest month (with the least rainfall) is September (102mm).

Average rainfall days in September
Falelima, Samoa

  • Average rainfall days in September: 21 days

The month with the highest number of rainy days is March (29.3 days).
The month with the least rainy days is September (21 days).

Average daylight in September /
Average sunshine in September
Falelima, Samoa

  • 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: 7h and 54min

The month with the most sunshine is March (Average sunshine: 8h and 6min).
The months with the least sunshine are January and February (Average sunshine: 7h and 6min).

Average sunshine days in September
Falelima, Samoa

  • Average sunshine days in September: 6.3 days

The month with the most sunshine days is August (6.7 days).
The month with the least sunshine days is February (0.8 days).

Average UV index in September
Falelima, Samoa

  • Average UV index in September: 7

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

Average cloud cover in September
Falelima, Samoa

  • Average cloud cover in September: 44

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is March (Cloud cover 43).

Average visibility in September
Falelima, Samoa

  • Average visibility in September: 10km

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