Pago Pago Weather in September
Pago Pago in September sees high temperatures, with highs around 28°C (82°F) and overnight lows of 26°C (79°F). Rainfall is fairly high at around 136 mm (5.4 in) on average, so pack waterproofs just in case.
Rainfall in Pago Pago in September
Climate statistics over the past 30 years suggest around 15 days of rain, with 136 mm (5.4 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Pago Pago in September
Daytime highs in Pago Pago in September reach 28°C (82°F), with nights around 26°C (79°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Pago Pago in September
Expect a lot of sunshine this month, with about 199 hours of sun. These sunny conditions add to the overall experience.
Average water temperature in September
At 27°C (81°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Samoa, check out our Pago Pago's climate page.
Pago Pago Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
28°C (82°F)
Water Temperature
27°C (81°F)
Chance of Rain
50%
Precipitation
136 mm (5.4 in)
Rainy days
15 days
Humidity
80%
Sunshine
199 hours
Percentage Sunshine
54%
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Pago Pago typically stay consistent throughout September, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Pago Pago in September
Browse day-by-day weather records for Pago Pago spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Pago Pago historical weather extremes in September
According to our 19 years of weather records for Pago Pago, the following extremes were recorded between 2006 and 2025.
- The warmest day in September was on September 29, 2015, with a maximum of 37°C (99°F).
- The lowest daytime temperature in September was 25°C (77°F), recorded on September 17, 2025.
- Nighttime temperatures dropped to 20°C (68°F) on September 19, 2025, marking the coldest September night on record.
Best Places in Samoa in September
Find out more about the weather in Samoa and which places have the best travel conditions in this month. See all of Samoa in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Pago Pago in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. With water temperatures around 27°C (81°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Pago Pago in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Samoa, check out our Pago Pago's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Pago Pago climate overview or explore weather in Samoa.
