September weather forecastMulinu'u, Samoa
September
Weather in September
September heralds an increase in maximum temperatures, rising back to above 27°C (80.6°F). The rainfall remains on the lower end, totalling 96mm (3.78"), hinting at the retreat of the wetter seasons. The wind speed decreases slightly, allowing for calmer days and more relaxed outdoor experiences. The tropical atmosphere of Mulinu'u remains prominent, offering diverse activities under the Samoan sun.Temperature
Mulinu'u's coldest weather arrives in September, when temperatures average a high of 27.3°C (81.1°F) and a low of 26.1°C (79°F).Heat index
The average heat index in September is estimated at a tropical 30°C (86°F). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.Heat index evaluations are typically in the context of light winds and shaded environments. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
The months with the highest humidity are June through September, with an average relative humidity of 78%.Rainfall
In September, the rain falls for 19.7 days. Throughout September, 96mm (3.78") of precipitation is accumulated. In Mulinu'u, during the entire year, the rain falls for 247.7 days and collects up to 1482mm (58.35") of precipitation.Daylight
The average length of the day in September is 12h and 2min.On the first day of September, sunrise is at 06:31 and sunset at 18:22. On the last day of the month, sunrise is at 06:10 and sunset at 18:23 +13.
Sunshine
In Mulinu'u, the average sunshine in September is 7.5h.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 value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mulinu'u, 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: 26.1°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
Mulinu'u, 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
Mulinu'u, Samoa
- Average wind speed in September: 23.4km/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
Mulinu'u, 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
Mulinu'u, Samoa
- Average rainfall in September: 96mm
The wettest month (with the highest rainfall) is January (175mm).
The driest month (with the least rainfall) is March (73mm).
Average rainfall days in September
Mulinu'u, Samoa
- Average rainfall days in September: 19.7 days
The month with the highest number of rainy days is April (22.7 days).
The months with the least rainy days are February and November (18.8 days).
Average daylight in September /
Average sunshine in September
Mulinu'u, 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 30min
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
Mulinu'u, Samoa
- Average sunshine days in September: 3.3 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
Mulinu'u, 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
Mulinu'u, Samoa
- Average cloud cover in September: 47
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
Mulinu'u, 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).
