Northern Mariana Islands weather in September
What is the weather like in Northern Mariana Islands in September?
The weather conditions in Northern Mariana Islands in September are generally poor.
You can expect warm maximum average daytime temperatures of around 30°C (85°F) and nighttime temperatures around 27°C (80°F) in Garapan. These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.
September is a very rainy month with an average rainfall of around 322mm (13 inches) in Garapan.
Where to go in Northern Mariana Islands in September





Popular destinations in Northern Mariana Islands
What is the weather like in September for the 2 most popular destinations in Northern Mariana Islands?
Average weather in Garapan
In September Garapan generally has high temperatures with maximum daytime temperatures around 30°C (85°F), minimum nighttime temperatures around 27°C (80°F) and heavy monthly rainfall. So on average the conditions are poor that month.
Average weather in Saipan
In September Saipan generally has high temperatures with maximum daytime temperatures around 30°C (85°F), minimum nighttime temperatures around 27°C (80°F) and heavy monthly rainfall. So on average the conditions are poor that month.
Is your destination not in the list? Have a look at other destinations in Northern Mariana Islands.
Is September the best time to go to Northern Mariana Islands?
In our opinion September is not the best time to visit Northern Mariana Islands with commonly poor weather in Garapan.
On average the best time to visit Northern Mariana Islands is in January, February, March, April, May and December with generally perfect weather in Garapan.
The worst months are July, August, September and October that can have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in Northern Mariana Islands.
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Weather and climate has detailed information for every country in the world. Are you going to Northern Mariana Islands? Get detailed historical weather averages for many cities in Northern Mariana Islands.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.