If you plan to visit Apia in September, the weather is typically alright, with an average high temperature of +28°C during the day and approximately 1 sunny days. Expect some rainy, though, as there are typically 26 rainy days in the month and around 146 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+28°C
Avg. max. temperature
+16°C
Min.
+34°C
Max.
146 mm
Total precipitation
82%
Avg. humidity
4 m/s
Avg. wind
1 ☀️
Sunny Days
3 ⛅️
Cloudy
26 🌦
Rainy
Our opinion: Apia has OK weather in September.
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Average temperature in Apia in September
Here are the expected maximum, average and minimum temperatures in Apia for September based on the historical data.
Last Year
Historical Data
Going from a maximum of +28°C during the day to a minimum of +24°C during the night, the temperature in September averages around +27°C.
The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +27°C to +28°C.
Is Apia warm or cold in September?
Apia is typically warm in September.
Maximum temperatures go up compared to the previous month from +28°C to +28°C. The minimum temperature also goes up from +24°C to +24°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Apia:
Climate in Apia in September
Apia weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+28°C
+28°C
+28°C
Min. temperature
+16°C
+16°C
+16°C
Max. temperature
+33°C
+34°C
+33°C
Rainfall
110 mm
146 mm
222 mm
Wind
4 m/s
4 m/s
4 m/s
Humidity
81%
82%
83%
Air pressure
1012 HPa
1012 HPa
1011 HPa
Sunny days
1
1
0
Cloudy days
5
3
2
Rainy days
26
26
28
Snowy days
0
0
0
September weather is still as ok as in August.The temperature levels stay the same in the area of +28°C for average maximum temperature during the day.Prepare for more rain. Average rainfall goes from 110 mm to 146 mm.Humidity rises from 81% to 82%.The average wind speed doesn’t change much during September, staying around 4 m/s.The amount of sunny days stay about the same, averaging 1 sunny days during the month.
October brings much the same weather, it remains ok.
Wind speed in Apia in September based on historical data.
Last Year
Historical Data
The average wind speed is 6 m/s getting up to 11 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Apia is gradually decreasing during September, going from 7 m/s to 4 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Apia based on historical data.
Last Year
Historical Data
Typically, there is a 77% chance of rain on an average day in September, with total rainfall of approximately 68 mm. The maximum amount of rainfall per day is around 10 mm, which is considered light rain.September is a pretty wet month with over 23 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Apia wettest month is January, where a typical day has a 94% chance of precipitation and 354 mm of rainfall per day. August, on the other hand, is the driest month with a mere 84% chance of precipitation and 110 mm of rainfall per day.
How was the weather last September in Apia?
This is the weather in Apia in September 2024:
1 September
☁️
+27°C
2 September
☁️
+27°C
3 September
☁️
+27°C
4 September
🌧️
+27°C
5 September
☁️
+28°C
6 September
☁️
+28°C
7 September
🌧️
+28°C
8 September
🌧️
+26°C
9 September
🌧️
+27°C
10 September
🌧️
+27°C
11 September
🌧️
+27°C
12 September
🌧️
+27°C
13 September
☀️
+28°C
14 September
🌧️
+28°C
15 September
🌧️
+27°C
16 September
🌧️
+28°C
17 September
🌧️
+28°C
18 September
🌧️
+27°C
19 September
🌧️
+26°C
20 September
☁️
+27°C
21 September
☁️
+27°C
22 September
🌧️
+27°C
23 September
🌧️
+26°C
24 September
☁️
+27°C
25 September
🌧️
+27°C
26 September
🌧️
+27°C
27 September
☁️
+27°C
28 September
☁️
+28°C
29 September
☀️
+28°C
30 September
🌧️
+28°C
In September 2024 Apia had 2 sunny days, 10 cloudy days, and 18 rainy days. The average maximum temperature was +27°C, with an absolute maximum of +28°C and a minimum of +26°C. The average humidity was 81%, with a maximum of 93% and a minimum of 65%. The average wind speed was 6 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change over Years
This is how Apia climate have been changing during last 43 years period.
The climate in Apia in September has not changed much over the last 43 years.
The average temperature was the lowest in 1989 (+27°C) and the highest in 2016 (+31°C). The driest year was 1983 with only 1678 mm of rainfall, and the wettest year was 2020 with 3597 mm.
FAQ
Frequently asked questions about the weather in Apia in September:
Is September a good time to visit Apia?
It’s always a good time to visit Apia, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Apia in September?
September is warm in Apia. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Is Apia rainy in September?
Apia is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Apia in September?
Usually, it’s not very sunny in Apia in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Apia, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
