June weather forecastRota, Northern Mariana Islands, USA
June
Weather in June
June brings with it the highest average sea temperatures of the year, maintaining a tropical climate for Rota. The marked increase in rainfall to 6.2" (157mm) compares with the rise seen in May, continuing the trend towards the wet season. Daylight hours reach their zenith, before beginning to reduce gradually as the year moves forward. Despite the increase in precipitation, June's weather conditions largely mirror those of May, with high UV indexes and consistent sea temperature. Navigating the beauty of Northern Mariana Islands during this period may require some adjustments due to the increase in rainfall.Temperature
Rota experiences the peak of its temperatures in April through November, when the average high-temperatures rise to 87.8°F (31°C).Rainfall
In Rota, in June, during 19 rainfall days, 6.22" (158mm) of precipitation is typically accumulated. Throughout the year, in Rota, there are 247 rainfall days, and 94.29" (2395mm) of precipitation is accumulated.Ocean temperature
The months with the warmest seawater in Rota, Northern Mariana Islands, are June through November, with an average ocean temperature of 84.2°F (29°C).Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.
Daylight
With an average of 12h and 54min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 5:49 am and sunset at 6:44 pm. On the last day of June, in Rota, sunrise is at 5:54 am and sunset at 6:51 pm ChST.
Sunshine
March through June, with an average of 7h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an excessive health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 12 during June translates into the following directions:
Employ every precaution of importance, unprotected skin and eyes could burn within moments. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. After a swim or outdoor exercise, one should liberally reapply broad-spectrum sunscreen with a sun protection factor of 30 or higher. Warning! The reflection of sand and water increases the UV dose.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Rota, Northern Mariana Islands, USA
- Average high temperature in June: 88°F
The warmest months (with the highest average high temperature) are April, May, June, July, August, September, October and November (88°F).
The month with the lowest average high temperature is January (84°F).
- Average low temperature in June: 77°F
The months with the highest average low temperature are May, June, July, August, September, October and November (77°F).
The coldest months (with the lowest average low temperature) are January, February, March, April and December (75°F).
Average rainfall in June
Rota, Northern Mariana Islands, USA
- Average rainfall in June: 6.2"
The wettest month (with the highest rainfall) is August (14.4").
The driest month (with the least rainfall) is March (3.5").
Average rainfall days in June
Rota, Northern Mariana Islands, USA
- Average rainfall days in June: 19 days
The month with the highest number of rainy days is August (23 days).
The month with the least rainy days is April (18 days).
Average sea temperature in June
Rota, Northern Mariana Islands, USA
- Average sea temperature in June: 84°F
The best months for swimming (with the highest average sea temperature) are June, July, August, September, October and November (84°F).
The coldest months (with the lowest average sea temperature) are February and March (81°F).
Average daylight in June /
Average sunshine in June
Rota, Northern Mariana Islands, USA
- Average daylight in June: 12h and 54min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in June: 7h
The months with the most sunshine are March, April, May and June (Average sunshine: 7h).
The month with the least sunshine is October (Average sunshine: 4h).
Average UV index in June
Rota, Northern Mariana Islands, USA
- Average UV index in June: 12
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).





