August weather forecast
Saipan, Northern Mariana Islands, USA

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Beautiful clear waters and white sandy beaches around the stunning Bird Island in Saipan, Northern Mariana Islands
Beautiful clear waters and white sandy beaches around the stunning Bird Island in Saipan, Northern Mariana Islands

Weather in August

In Saipan, August stands as the rainiest month, with a hefty rainfall of 12.4" (315mm). Temperature swings are seen from a low of 75.2°F (24°C) to an upper limit of 84°F (28.9°C). The ocean temperature stabilizes at 84°F (28.9°C), providing some much-needed relief from the humidity. Venturing into September, rainfall remains high but gradually begins to dwindle.

Temperature

The arrival of August sees an average high-temperature of a still moderately hot 84°F (28.9°C), identical to July. Saipan encounters a small divergence from daytime high temperatures, averaging a low-temperature of 75.2°F (24°C) during August nights.

Rainfall

The month with the most rainfall is August, when the rain falls for 21 days and typically aggregates up to 12.44" (316mm) of precipitation.

Ocean temperature

The months with the warmest seawater are June through November, with an average ocean temperature of 84.2°F (29°C).
Note: Between the temperatures of 77°F (25°C) and 84.2°F (29°C), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.

Daylight

In Saipan, the average length of the day in August is 12h and 38min.
On the first day of the month, sunrise is at 5:59 am and sunset at 6:47 pm. On the last day of August, sunrise is at 6:04 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

The months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 12 during August translates into the following directions:
Employ all crucial safeguards, unprotected skin could burn rapidly. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Even if the day is cloudy, sunscreen with SPF of at least 30 should be applied generously and reapplied often, particularly after swimming or outdoor exercise. Attention! The combination of sand and water reflections enhances UV ray intensity.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

An average high-temperature, in August, in Saipan, is 84°F (28.9°C) and the average low-temperature is 75.2°F (24°C).

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 21 days and accumulates 12.44" (316mm) of precipitation.

How many days does it rain in August?

In August, the rain falls for 21 days. Throughout August, 12.44" (316mm) of precipitation is accumulated.

What months are the ocean warmest?

June through November, with an average ocean temperature of 84.2°F (29°C), are months with the warmest seawater.

What is the ocean temperature in August in Saipan?

In Saipan, Northern Mariana Islands, in August, the average water temperature is 84.2°F (29°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in August in Saipan?

In Saipan, Northern Mariana Islands, the average day length in August is 12h and 38min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:59 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 6:30 pm ChST.

What is the month with the least sunshine?

The months with the least sunshine are August through December, with an average of 5h of sunshine.

How long on average sun shines in August?

The average sunshine duration in August is 5h.

When is the highest UV index in Saipan?

February through September, with an average maximum UV index of 12, are months with the highest UV index.

What is the UV index intensity in August?

The average daily maximum UV index in August is 12. A UV Index reading of 11, and higher, represents an extreme health threat from unsafe exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in August
Saipan, Northern Mariana Islands, USA

Average temperature in August - Saipan, Northern Mariana Islands, USA
  • Average high temperature in August: 84°F

The warmest month (with the highest average high temperature) is June (85°F).
The month with the lowest average high temperature is February (79.7°F).

  • Average low temperature in August: 75.2°F

The month with the highest average low temperature is May (75.5°F).
The coldest month (with the lowest average low temperature) is February (72.9°F).

Average rainfall in August
Saipan, Northern Mariana Islands, USA

Average rainfall in August - Saipan, Northern Mariana Islands, USA
  • Average rainfall in August: 12.4"

The wettest month (with the highest rainfall) is August (12.4").
The driest month (with the least rainfall) is March (2.4").

Average rainfall days in August
Saipan, Northern Mariana Islands, USA

Average rainfall days in August - Saipan, Northern Mariana Islands, USA
  • Average rainfall days in August: 21 days

The months with the highest number of rainy days are January and December (23 days).
The month with the least rainy days is June (17 days).

Average sea temperature in August
Saipan, Northern Mariana Islands, USA

Average sea temperature in August - Saipan, Northern Mariana Islands, USA
  • Average sea temperature in August: 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 August /
Average sunshine in August
Saipan, Northern Mariana Islands, USA

Average daylight in August / Average sunshine in August - Saipan, Northern Mariana Islands, USA
  • Average daylight in August: 12h and 4min

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 12min).

  • 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
Saipan, Northern Mariana Islands, USA

Average UV index in August - Saipan, 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).

Saipan, Northern Mariana Islands, USA

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