January weather forecast
Guam National Wildlife Refuge, GU

January in Guam National Wildlife Refuge reveals a transition out of the rainy season, with less precipitation and clearer skies than the preceding month. As a direct result of these conditions, outdoor activities are more enjoyable and favored by tourists and locals alike. An average sea temperature of 82.9°F (28.3°C) provides balmy waters for aquatic activities such as snorkeling and swimming. Minor changes occur within the environment, where lower humidity promotes the growth of certain plant species. Sunrises wax earlier, increasing the daylight hours, which positively influences the daily routines of wildlife and residents.

Ocean temperature

In January, the average ocean temperature is 82.9°F (28.3°C).
Note: Water surface temperatures from 77°F (25°C) to 84.2°F (29°C) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.

Daylight

The average length of the day in January is 11h and 25min.
On the first day of January, sunrise is at 6:43 am and sunset at 6:03 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:19 pm ChST.