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Northern Mariana Islands

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Northern Mariana Islands Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-10

Northern Mariana Islands year round climate

  • Spring (March–May): Average 79–82°F, plenty of sunshine, warm and comfortable, extremely low rainfall, one of the driest periods of the year. Air humidity is relatively stable. Common activities: Beach relaxation, snorkeling, water activities, island exploration. Recommended attire: Light and breathable short-sleeved shirts and pants, swimwear, sun hat, sunglasses.
  • Summer (June–August): Average 83–83°F, hot with strong sunshine, higher humidity, rainfall slightly increases compared to spring but remains low. Common activities: Early morning or evening outdoor activities, various water sports, exploring sea caves or jungle trails. Recommended attire: Moisture-wicking light clothing, loose shorts, T-shirts, swimwear, sunscreen, sandals.
  • Autumn (September–November): Average 82–82°F, temperatures remain warm, but this period enters the month with the highest annual rainfall (September), air humidity significantly increases, with occasional showers. Common activities: Water activities are still possible, but it's advisable to check the weather forecast; also visit historical sites or enjoy resort facilities. Recommended attire: Quick-dry light clothing, sandals, light rain gear (such as an umbrella or thin raincoat).
  • Winter (December–February): Average 79–82°F, weather is cool and pleasant, making it the most comfortable season of the year, with plenty of sunshine, very little rainfall, and lower humidity. Common activities: Best suited for various outdoor activities such as scuba diving, sailing, golf, beach strolling. Recommended attire: Light long-sleeved or short-sleeved clothing, shorts, long skirts, swimwear, light jacket (for evenings or indoors).

Northern Mariana Islands climatological average

Annual average temperature: approx. 82.0°F / Annual rainfall: approx. 68 mm / Summer humidity: 75-85% / Rainiest month: September

Northern Mariana Islands monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
80.2°F
1.2
February
79.2°F
1.1
March
79.9°F
1.9
April
81.3°F
2
May
82.8°F
2.2
June
83.7°F
2.7
July
83.7°F
4.7
August
83.5°F
12.4
September
82.8°F
17.7
October
82.2°F
16.2
November
82.9°F
3.6
December
82.6°F
2.8

Northern Mariana Islands weather for the next seven days

6/5
Friday
Moderate rain
83.3°F/81.2°F
6/6
Saturday
Patchy rain nearby
83.1°F/82°F
6/7
Sunday
Patchy rain nearby
83.1°F/82.1°F
6/8
Monday
Patchy rain nearby
82.8°F/82°F
6/9
Tuesday
Patchy rain nearby
84°F/81.6°F
6/10
Wednesday
Sunny
83.4°F/82.1°F
6/11
Thursday
Patchy rain nearby
83.2°F/81.7°F