August weather forecastTinian International Airport, Northern Mariana Islands, USA
August
Weather in August
As summer continues in full swing, August sees constant high temperatures, similar to July. An observable surge is present in the rainfall, registering at an average of 11.1" (282mm) over 23 days. The daylight hours indicate a slight reduction, counterbalanced by persistent sunshine durations. The sea maintains a delightful warm temperature, adding to the charm of the beach city. While enjoying, heed of the high UV index is advised.Temperature
The months of June through October see the peak of Tinian International Airport's temperatures, averaging a high of 87.8°F (31°C).Rainfall
In August, in Tinian International Airport, the rain falls for 23 days. Throughout August, 11.14" (283mm) of precipitation is accumulated. Throughout the year, there are 247 rainfall days, and 79.21" (2012mm) of precipitation is accumulated.Ocean temperature
In August, the average ocean temperature is 85.1°F (29.5°C).Note: Surface water temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as ideal and highly pleasant for extended enjoyment in all water activities.
Daylight
In Tinian International Airport, the average length of the day in August is 12h and 37min.On the first day of the month, sunrise is at 6:00 am and sunset at 6:47 pm. On the last day of August, sunrise is at 6:05 am and sunset at 6:30 pm ChST.
Sunshine
The months with the least sunshine are August through December, with an average of 5h of sunshine.UV index
February through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an excessive health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 12 during August translates into these guidelines:
Adopt every vital precaution, unprotected skin and eyes may burn rapidly. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! Sand and water reflections can notably increase the UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Tinian International Airport, Northern Mariana Islands, USA
- Average high temperature in August: 88°F
The warmest months (with the highest average high temperature) are June, July, August, September and October (88°F).
The months with the lowest average high temperature are January, February and March (84°F).
- Average low temperature in August: 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 February and March (73°F).
Average rainfall in August
Tinian International Airport, Northern Mariana Islands, USA
- Average rainfall in August: 11.1"
The wettest month (with the highest rainfall) is September (12.8").
The driest month (with the least rainfall) is February (2.9").
Average rainfall days in August
Tinian International Airport, Northern Mariana Islands, USA
- Average rainfall days in August: 23 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 August
Tinian International Airport, Northern Mariana Islands, USA
- Average sea temperature in August: 85.1°F
The best month for swimming (with the highest average sea temperature) is July (85.4°F).
The coldest months (with the lowest average sea temperature) are January, February and March (82°F).
Average daylight in August /
Average sunshine in August
Tinian International Airport, Northern Mariana Islands, USA
- Average daylight in August: 12h and 36min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in August: 5h
The months with the most sunshine are March, April, May and June (Average sunshine: 7h).
The months with the least sunshine are August, September, October, November and December (Average sunshine: 5h).
Average UV index in August
Tinian International Airport, Northern Mariana Islands, USA
- Average UV index in August: 12
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The months with the lowest UV index are November and December (UV index 9).





