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

March weather forecast and climate
Hagåtña, GU

The ideal ocean temperature of 82.6°F (28.1°C) makes March in Hagåtña, Guam, the best time for swimming and other water activities.

Ocean temperature

In Hagåtña, in March, the average water temperature is 82.6°F (28.1°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.


In Hagåtña, the average length of the day in March is 12.1h.

What is the water temperature in March in Hagåtña?

In March, the average ocean temperature in Hagåtña, Guam, is 82.6°F (28.1°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Hagåtña have in March?

The average length of the day in March in Hagåtña, Guam, is 12.1h.
Average sea temperature in March - Hagåtña, GU
  • Average sea temperature in March: 82.6°F

The best month for swimming (with the highest average sea temperature) is August (85.4°F).
The coldest month (with the lowest average sea temperature) is February (82°F).

Average daylight in March - Hagåtña, GU
  • Average daylight in March: 12.1h

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