Best time to travel to Northern Mariana Islands

Northern Mariana Islands on a weather map

Weather

Sea water temperature

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December

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Monthly Northern Mariana Islands weather

January

February

March

April

May

June

July

August

September

October

November

December

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	81.7°F	79.9°F	61.2%	4 days (2.1 in.)	82.8°F	5 h. 25 min.
Rota	80.6°F	81.0°F	65.7%	2 days (1.8 in.)	82.8°F	4 h. 54 min.
Saipan	81.3°F	80.3°F	65.0%	2 days (1.5 in.)	82.4°F	4 h. 58 min.
Susupe	81.3°F	80.3°F	65.0%	2 days (1.5 in.)	82.4°F	4 h. 58 min.
Tinian	81.3°F	80.3°F	65.0%	2 days (1.5 in.)	82.4°F	4 h. 58 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	81.5°F	79.3°F	55.1%	-	82.0°F	6 h. 15 min.
Rota	79.9°F	80.2°F	58.8%	-	82.0°F	5 h. 48 min.
Saipan	80.6°F	79.8°F	57.9%	-	81.7°F	5 h. 53 min.
Susupe	80.6°F	79.8°F	57.9%	-	81.7°F	5 h. 53 min.
Tinian	80.6°F	79.8°F	58.0%	-	81.7°F	5 h. 53 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	82.6°F	79.6°F	54.5%	-	82.2°F	6 h. 29 min.
Rota	80.3°F	80.9°F	60.0%	-	82.0°F	5 h. 49 min.
Saipan	81.2°F	80.0°F	59.3%	-	81.7°F	5 h. 54 min.
Susupe	81.2°F	80.0°F	59.3%	-	81.7°F	5 h. 54 min.
Tinian	81.2°F	80.0°F	59.3%	-	81.7°F	5 h. 54 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	83.2°F	79.8°F	59.5%	2 days (1.7 in.)	83.1°F	6 h. 1 min.
Rota	80.8°F	81.5°F	61.5%	1 day (1.8 in.)	82.9°F	5 h. 47 min.
Saipan	81.8°F	80.8°F	59.1%	2 days (1.3 in.)	82.6°F	6 h. 6 min.
Susupe	81.8°F	80.8°F	59.0%	2 days (1.3 in.)	82.6°F	6 h. 6 min.
Tinian	81.8°F	80.8°F	59.0%	2 days (1.3 in.)	82.8°F	6 h. 6 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	84.8°F	80.3°F	55.5%	2 days (3.2 in.)	84.2°F	6 h. 40 min.
Rota	82.1°F	82.6°F	60.2%	2 days (1.6 in.)	84.0°F	6 h. 4 min.
Saipan	83.1°F	82.1°F	58.4%	-	83.8°F	6 h. 20 min.
Susupe	83.1°F	82.1°F	58.4%	-	83.8°F	6 h. 20 min.
Tinian	83.1°F	82.1°F	58.5%	-	83.8°F	6 h. 19 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	85.2°F	81.1°F	58.8%	1 day (1.9 in.)	85.1°F	6 h. 18 min.
Rota	82.9°F	83.6°F	60.8%	1 day (1.3 in.)	84.9°F	6 h. 4 min.
Saipan	84.1°F	83.2°F	61.1%	1 day (1.3 in.)	84.9°F	6 h. 3 min.
Susupe	84.1°F	83.2°F	61.1%	1 day (1.3 in.)	84.9°F	6 h. 3 min.
Tinian	84.1°F	83.2°F	61.1%	1 day (1.3 in.)	84.9°F	6 h. 3 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	84.6°F	81.3°F	63.4%	5 days (3.5 in.)	85.3°F	5 h. 41 min.
Rota	83.3°F	83.8°F	64.3%	5 days (2.8 in.)	85.5°F	5 h. 35 min.
Saipan	84.3°F	83.6°F	63.8%	2 days (2.2 in.)	85.5°F	5 h. 40 min.
Susupe	84.3°F	83.6°F	63.8%	2 days (2.2 in.)	85.5°F	5 h. 40 min.
Tinian	84.3°F	83.6°F	63.9%	2 days (2.2 in.)	85.5°F	5 h. 39 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	84.0°F	81.6°F	61.8%	7 days (3.9 in.)	85.5°F	5 h. 48 min.
Rota	83.3°F	83.8°F	64.0%	5 days (3.2 in.)	85.5°F	5 h. 31 min.
Saipan	84.2°F	83.7°F	64.3%	6 days (3.1 in.)	85.5°F	5 h. 30 min.
Susupe	84.2°F	83.7°F	64.3%	6 days (3.2 in.)	85.5°F	5 h. 29 min.
Tinian	84.2°F	83.7°F	64.4%	6 days (3.1 in.)	85.5°F	5 h. 29 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	84.1°F	81.6°F	60.2%	6 days (4.3 in.)	85.5°F	5 h. 51 min.
Rota	83.2°F	83.8°F	65.0%	5 days (3.4 in.)	85.6°F	5 h. 16 min.
Saipan	84.2°F	83.4°F	63.7%	6 days (3.6 in.)	85.5°F	5 h. 25 min.
Susupe	84.2°F	83.4°F	63.7%	6 days (3.6 in.)	85.5°F	5 h. 25 min.
Tinian	84.2°F	83.4°F	63.7%	6 days (3.6 in.)	85.5°F	5 h. 25 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	83.4°F	81.1°F	64.9%	9 days (5.0 in.)	85.1°F	5 h. 8 min.
Rota	82.7°F	83.3°F	66.9%	8 days (4.3 in.)	85.1°F	4 h. 55 min.
Saipan	83.7°F	82.9°F	65.7%	7 days (3.7 in.)	84.9°F	5 h. 3 min.
Susupe	83.7°F	82.9°F	65.6%	7 days (3.7 in.)	84.9°F	5 h. 3 min.
Tinian	83.7°F	82.9°F	65.7%	7 days (3.7 in.)	84.9°F	5 h. 3 min.

Place name	Air temp day / night		Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	83.9°F	81.7°F	60.8%	2 days (1.8 in.)	84.7°F	5 h. 30 min.
Rota	83.2°F	83.8°F	61.6%	1 day (2.1 in.)	84.6°F	5 h. 24 min.
Saipan	84.0°F	83.3°F	60.2%	1 day (1.3 in.)	84.4°F	5 h. 33 min.
Susupe	84.0°F	83.3°F	60.3%	1 day (1.3 in.)	84.4°F	5 h. 32 min.
Tinian	84.0°F	83.3°F	60.3%	1 day (1.3 in.)	84.4°F	5 h. 32 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Guam	82.8°F	80.9°F	62.2%	2 days (1.8 in.)	83.7°F	5 h. 17 min.
Rota	82.2°F	82.4°F	64.3%	2 days (1.5 in.)	83.7°F	5 h. 2 min.
Saipan	82.7°F	82.0°F	60.8%	2 days (1.4 in.)	83.5°F	5 h. 25 min.
Susupe	82.7°F	82.0°F	60.8%	2 days (1.4 in.)	83.3°F	5 h. 25 min.
Tinian	82.7°F	82.0°F	60.9%	2 days (1.4 in.)	83.5°F	5 h. 24 min.

* Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

Name

°F

Guam