Micronesia

Micronesia Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Micronesia in September.

Planning a journey to Micronesia this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Micronesia in September

September in Micronesia generally has warm temperatures, with heavy precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 30°C (86°F) and nighttime temperatures around 26°C (79°F) in Colonia. While the given temperatures for day and night are typical, there may be days that feel warmer. Make sure you're dressed in a way that keeps you cool and comfortable.

To learn more about the conditions in specific areas of Micronesia, check out the map below.

Precipitation

In September, precipitation varies across different areas. From heavy rainfall in Kosrae with an average of 267 mm (11 in) to heavy rainfall in Guam with 338 mm (13 in).

Average sunshine

Sunshine levels are moderate in most locations. Colonia typically sees 183 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore Micronesia by month

Best Places to Visit in Micronesia in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Micronesia.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Micronesia

What is the weather like in September for some of the most popular destinations in Micronesia?

Temperature range in Micronesia (September)

Precipitation variation in Micronesia (September)

Colonia

In September Colonia generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
177 hours
183 hours
169 hours
Monthly rainfall
350 mm (14 in)
315 mm (12 in)
284 mm (11 in)
Monthly rainy days
18 days
17 days
20 days
Weather conditions

Yepan

In September Yepan generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly rainfall
290 mm (11 in)
267 mm (11 in)
271 mm (11 in)
Monthly rainy days
21 days
21 days
22 days
Weather conditions

Ulithi

In September Ulithi generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly rainfall
354 mm (14 in)
324 mm (13 in)
276 mm (11 in)
Monthly rainy days
18 days
18 days
21 days
Weather conditions

Guam

In September Guam generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
143 hours
133 hours
133 hours
Monthly rainfall
362 mm (14 in)
338 mm (13 in)
291 mm (11 in)
Monthly rainy days
20 days
19 days
22 days
Weather conditions

Kosrae

In September Kosrae generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly rainfall
290 mm (11 in)
267 mm (11 in)
270 mm (11 in)
Monthly rainy days
21 days
21 days
22 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Micronesia.

Popular cities in September

Day & night temperatures, rainfall and average weather in Micronesia in September.

City Weather Day temp Night temp Rainfall
Yepan 30°C (86°F) 26°C (79°F) 267 mm (11 in)
Colonia 30°C (86°F) 26°C (79°F) 315 mm (12 in)
Ulithi 30°C (86°F) 26°C (79°F) 324 mm (13 in)
Kosrae 30°C (86°F) 26°C (79°F) 267 mm (11 in)
Ponape 29°C (84°F) 26°C (79°F) 295 mm (12 in)
Guam 30°C (86°F) 26°C (79°F) 338 mm (13 in)

Micronesia weather in September: frequently asked questions

What is the weather like in Micronesia in September?

In September, Micronesia generally has poor weather conditions. Colonia sees daytime temperatures near 30°C (86°F), with nights cooling to roughly 26°C (79°F).

What is the average temperature in Micronesia in September?

Daytime temperatures in Colonia peak at roughly 30°C (86°F) in September, dropping to about 26°C (79°F) overnight.

Does Micronesia get a lot of rain in September?

Rainfall in Micronesia peaks during September. Colonia averages roughly 315 mm (12 in), so frequent and sometimes heavy showers are the norm.

Is September a Good Time to Visit Micronesia?

In our opinion, September may not be the ideal time to visit Micronesia due to the typically poor weather in Colonia.

On average, the best time to visit Micronesia is in January, February, March and April with generally pleasant weather in Colonia. On the other hand, the months of May, June, July, August, September, October, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Micronesia.

Weather and climate has detailed information for every country in the world. Are you going to Micronesia? Get detailed historical weather averages for many cities in Micronesia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.