Hagåtña Weather in September

What's the weather like in Hagåtña, Guam in September?

The climate in Hagåtña during September can be summarized as hot, humid and very wet.

September is in the fall / autumn in Hagåtña and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 25°C (77°F) is normal.

Hagåtña weather averages (imperial / metric)
Daytime temperature 30.8°C 87.4°F
Nightly temperature 24.9°C 76.7°F
Average temperature 27.8°C 82°F
Daily sunshine 4.9 hrs
Avg rainfall 343 mm 13.5 ins
Rainy days 19 days
Sea temperature 29.6°C 85.2°F
Humidity 89%
Windspeed 12.2kph 8 mph

On average September is the 2nd wettest month of the year in Hagåtña with around 343mm 13.5 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.9 hours of sunshine per day.

September temperatures in Hagåtña

September rainfall

September hourly sunshine

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in September 2018.

Other monthly averages

Hagåtña weather stats

Hagåtña weather statistics
Hottest month: June 30.9°C 87.6°F
Driest month: March 89mm 3.5ins
Sunniest month: March 7.4hrs
Coldest month: February 29.6°C 85.3°F
Wettest month: August 363mm 14.3ins
Map showing location of Hagåtña (13.47567, 144.74886)

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