Hagåtña
Guam, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Hagåtña, GU

Average sea temperature in September - Hagåtña, GU
  • Average sea temperature in September: 29.5°C

The best month for swimming (with the highest average sea temperature) is August (29.7°C).
The coldest month (with the lowest average sea temperature) is February (27.8°C).

Average daylight in September - Hagåtña, GU
  • Average daylight in September: 12.2h

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