September weather forecastMulifanua, Samoa

September

Weather in September

September shows a significant decrease in rainfall with total precipitation dropping only to 57mm (2.24"). With these changes, Mulifanua starts transitioning towards the drier months of the year. Temperatures make a welcomed comeback, indicating the nearing of the warmer season. Conditions remain favorable for outdoor activities, given the relatively lower humidity levels and a visible decline in cloud cover. Altogether, the weather showcases a gradual shift in the yearly cycle.

Temperature

The coldest period in Mulifanua tends to be September, when average temperatures fluctuate between a high of 27.3°C (81.1°F) and a low of 26.3°C (79.3°F).

Heat index

The average heat index in September is appraised at a hot 30°C (86°F). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

June through September, with an average relative humidity of 78%, are the most humid months.

Rainfall

The month with the least rainfall is September, when the rain falls for 18.7 days and typically collects 57mm (2.24") of precipitation.

Daylight

In Mulifanua, the average length of the day in September is 12h and 2min.
On the first day of the month, sunrise is at 06:32 and sunset at 18:23. On the last day of September, sunrise is at 06:11 and sunset at 18:24 +13.

Sunshine

In September, the average sunshine is 7.8h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 7 during September translates into the following guidance:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

Mulifanua, Samoa, notes the coldest temperatures in September, with a average high of 27.3°C (81.1°F) and a low of 26.3°C (79.3°F).

An average high-temperature, in September, in Mulifanua, is 27.3°C (81.1°F) and the average low-temperature is 26.3°C (79.3°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in September is appraised at 30°C (86°F).

The months with the highest humidity are June through September, with an average relative humidity of 78%.

In Mulifanua, the average relative humidity in September is 78%.

September is the month with the least rainfall. Rain falls for 18.7 days and accumulates 57mm (2.24") of precipitation.

In Mulifanua, in September, during 18.7 rainfall days, 57mm (2.24") of precipitation is typically accumulated.

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

On the first day of September, sunrise is at 06:32 and sunset at 18:23. On the last day of the month, sunrise is at 06:11 and sunset at 18:24 +13.

The average sunshine duration in September is 7.8h.

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

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 estimate of 6 to 7 represents a high health threat 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
Mulifanua, Samoa

  • Average high temperature in September: 27.3°C

The warmest months (with the highest average high temperature) are March and April (28.7°C).
The month with the lowest average high temperature is September (27.3°C).

  • Average low temperature in September: 26.3°C

The month with the highest average low temperature is January (27.6°C).
The coldest month (with the lowest average low temperature) is August (26°C).

Average pressure in September
Mulifanua, Samoa

  • Average pressure in September: 1012.3mbar

The month with the highest atmospheric pressure is September (1012.3mbar).
The month with the lowest atmospheric pressure is January (1007.5mbar).

Average wind speed in September
Mulifanua, Samoa

  • Average wind speed in September: 23.2km/h

The windiest month (with the highest average wind speed) is July (24.7km/h).
The calmest month (with the lowest average wind speed) is March (14.8km/h).

Average humidity in September
Mulifanua, Samoa

  • Average humidity in September: 78%

The months with the highest relative humidity are June, July, August and September (78%).
The month with the lowest relative humidity is March (75%).

Average rainfall in September
Mulifanua, Samoa

  • Average rainfall in September: 57mm

The wettest month (with the highest rainfall) is January (175mm).
The driest month (with the least rainfall) is September (57mm).

Average rainfall days in September
Mulifanua, Samoa

  • Average rainfall days in September: 18.7 days

The month with the highest number of rainy days is April (22.7 days).
The month with the least rainy days is September (18.7 days).

Average daylight in September /
Average sunshine in September
Mulifanua, 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 48min

The month with the most sunshine is March (Average sunshine: 8h and 42min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).

Average sunshine days in September
Mulifanua, Samoa

  • Average sunshine days in September: 3.6 days

The month with the most sunshine days is December (10.4 days).
The month with the least sunshine days is June (2.7 days).

Average UV index in September
Mulifanua, 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
Mulifanua, Samoa

  • Average cloud cover in September: 44

The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is March (Cloud cover 38).

Average visibility in September
Mulifanua, Samoa

  • Average visibility in September: 10km

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