June weather forecast
Guam, USA

June in Guam heralds the official onset of the wet season. During this month, temperatures range from 80°F (26.7°C) to 89°F (31.7°C), showcasing the island's tropical warmth. The consistent rise in humidity, accompanied by more frequent rain showers, characterizes the shift from the dry to wet season.

Throughout the entire span of Guam, this change in weather patterns is evident. The previously dry landscapes start to embrace the fresh showers, rejuvenating the island's flora and amplifying its verdant beauty. June's climate contrasts sharply with May's ending dry spells, signifying the summer's wet embrace.

Rainfall in June is more pronounced, with the month experiencing a notable increase in rainy days compared to May. However, the ever-reliable northeast trade winds, moving at speeds from 10mph (16.1km/h) to 20mph (32.2km/h), persistently blow across the island, offering moments of respite from the mounting humidity and intermittent showers.

The surrounding ocean, which has been steadily warming since the dry season, remains perfect for various marine pursuits. However, swimmers and divers should exercise a bit more caution due to the increased likelihood of sudden rain showers. As June progresses and transitions into July, the conditions become wetter, paving the way for the peak of the rainy season.

---

• Hagåtña - June »
  In Hagåtña in June, during 25.4 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. In Hagåtña in June, it is raining for 25.4 days, with typically 3.7" (94mm) of accumulated precipitation.
• Dededo - June »
  The month with the longest days in Dededo is June, with an average of 12h and 54min of daylight. In Dededo, in June, during 25.4 rainfall days, 3.7" (94mm) of precipitation is typically accumulated.
• Santa Rita - June »
  In Santa Rita in June, during 25.4 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. In Santa Rita, Guam, in June, the average water temperature is 84.7°F (29.3°C).
• Agat - June »
  In Agat, Guam, in June, it is raining for 25.4 days, with typically 3.7" (94mm) of accumulated precipitation. June has the longest days of the year in Agat, with an average of 12h and 54min of daylight.
• Piti - June »
  In Piti during June, the rain falls for 25.4 days and regularly aggregates up to 3.7" (94mm) of precipitation. In Piti in June, the average water temperature is 84.7°F (29.3°C).
• Talofofo - June »
  June marks the middle of the year with Talofofo experiencing increases in rainfall, daylight hours, and a slight decrease in wind speeds to 11.6mph (18.7km/h) from 11.7mph (18.8km/h) of the previous month. In Talofofo during June, the rain falls for 25.4 days and regularly aggregates up to 3.7" (94mm) of precipitation.
• Inarajan - June »
  June has the longest days of the year in Inarajan with an average of 12h and 54min of daylight. In Inarajan in June, it is raining for 25.4 days, with typically 3.7" (94mm) of accumulated precipitation.
• Merizo - June »
  The month with the longest days in Merizo is June, with an average of 12h and 54min of daylight. The month with the longest days in Merizo is June, with an average of 12h and 54min of daylight.
• Umatac - June »
  The month with the longest days in Umatac is June, with an average of 12h and 54min of daylight. In Umatac, Guam, in June, it is raining for 25.4 days, with typically 3.7" (94mm) of accumulated precipitation.
• Guam National Wildlife Refuge - June »
  On the first day of June in Guam National Wildlife Refuge, sunrise is at 5:51 am and sunset at 6:44 pm. June has the longest days of the year in Guam National Wildlife Refuge, with an average of 12h and 54min of daylight.