September weather forecast and climate
Apia, Samoa

The view of the large Methodist church in the town of Apia, Samoa
The view of the large Methodist church in the town of Apia, Samoa

What are the coldest months in Apia?

August and September, with an average high-temperature of 28°C (82.4°F), are the coldest months.

What is the average temperature in September in Apia?

In September, the average high-temperature is 28°C (82.4°F), and the average low-temperature is 23°C (73.4°F).
Average temperature in September - Apia, Samoa
  • Average high temperature in September: 28°C

Warmest months (with the highest average high temperature) are January, March, April and November (30°C).
Months with the lowest average high temperature are August and September (28°C).

  • Average low temperature in September: 23°C

The month with the highest average low temperature is February (24°C).
Coldest months (with the lowest average low temperature) are January, March, April, May, June, July, August, September, October, November and December (23°C).

Average humidity in September - Apia, Samoa
  • Average humidity in September: 75%

The month with the highest relative humidity is January (81%).
Months with the lowest relative humidity are June, August and September (75%).

Average rainfall in September - Apia, Samoa
  • Average rainfall in September: 130mm

The wettest month (with the highest rainfall) is January (450mm).
Driest months (with the lowest rainfall) are July and August (80mm).

Average rainfall days in September - Apia, Samoa
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is January (19 days).
The month with the lowest number of rainy days is July (8 days).

Average sea temperature in September - Apia, Samoa
  • Average sea temperature in September: 27.9°C

The best month for swimming (with the highest average sea temperature) is March (29.7°C).
Coldest months (with the lowest average sea temperature) are August and September (27.9°C).

Average daylight in September / Average sunshine in September - Apia, Samoa
  • Average daylight in September: 12h

The month with the longest days is December (Average daylight: 12.9h).
The month with shortest days is June (Average daylight: 11.3h).

  • Average sunshine in September: 8h

Months with most sunshine are June, July, August and September (Average sunshine: 8h).
Months with least sunshine are January, February, March and December (Average sunshine: 6).

Average UV index in September - Apia, Samoa
  • Average UV index in September: 12

Months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 8).

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