Momase Region Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Momase Region, Papua New Guinea in September.

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Madang Lae

Are you planning a trip a to Momase Region, Papua New Guinea in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Momase Region in September

Momase Region, Papua New Guinea is a region in Papua New Guinea. September in Momase Region generally has warm temperatures, with heavy precipitation.

Temperatures

The average maximum temperatures are warm and range from 27°C (81°F) in Lae to 30°C (86°F) in Madang. Nighttime temperatures generally drop to 24°C (75°F) in Madang and 22°C (72°F) in Lae. 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.

For a closer look at conditions across Momase Region, Papua New Guinea, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From heavy rainfall in Madang with an average of 163 mm (6.4 in) to heavy rainfall in Lae with 483 mm (19 in).

Average sunshine

September brings good sunshine to many areas. Madang sees around 216 hours of sunlight, great for visitors looking for bright days.

Explore Momase Region by month

Pick a month to see the average temperature, rainfall and sunshine in Momase Region — and find the best time to visit. (based on Madang)

January30°C (86°F) February30°C (86°F) March30°C (86°F) April30°C (86°F) May30°C (86°F) June30°C (86°F) This monthJuly29°C (84°F) August29°C (84°F) September30°C (86°F) October30°C (86°F) November30°C (86°F) December30°C (86°F)
Best Time to Visit Momase Region →

Best Places to Visit in Momase Region in September

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

Conditions Temperatures Precipitation
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 Momase Region

What is the weather like in September for some of the most popular destinations in Momase Region, Papua New Guinea?

Temperature range in Momase Region (September)

Precipitation variation in Momase Region (September)

Madang

In September Madang generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
24°C (75°F)
24°C (75°F)
25°C (77°F)
Monthly sun hours
226 hours
216 hours
217 hours
Monthly rainfall
159 mm (6.3 in)
163 mm (6.4 in)
236 mm (9.3 in)
Monthly rainy days
14 days
14 days
19 days
Weather conditions
pleasant
tolerable
poor
Climate in Madang →

Lae

In September Lae generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 22°C (72°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
27°C (81°F)
27°C (81°F)
Min temperature
22°C (72°F)
22°C (72°F)
23°C (73°F)
Monthly rainfall
522 mm (21 in)
483 mm (19 in)
505 mm (20 in)
Monthly rainy days
23 days
21 days
21 days
Weather conditions
poor
poor
poor
Climate in Lae →

Is your destination not in the list? Have a look at all destinations in Momase Region, in Papua New Guinea.

In our records: Papua New Guinea September extremes

Notable September records observed across cities in Papua New Guinea in our climate database (1988 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the coldest September daytime high in Papua New Guinea was 17°C (63°F) in Goroka on September 22, 2025.

Popular cities in September

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

City Weather Day temp Night temp Rainfall
Madang 30°C (86°F) 24°C (75°F) 163 mm (6.4 in)
Lae 27°C (81°F) 22°C (72°F) 483 mm (19 in)

Momase Region weather in September: frequently asked questions

What is the weather like in Momase Region, Papua New Guinea in September?

Momase Region, Papua New Guinea typically experiences unpleasant weather in September, part of the season. Daytime highs in Madang average around 30°C (86°F), and temperatures drop to about 24°C (75°F) at night.

What is the average temperature in Momase Region, Papua New Guinea in September?

Madang averages a daytime maximum of 30°C (86°F) in September, with overnight lows close to 24°C (75°F).

Does Momase Region, Papua New Guinea get a lot of rain in September?

Expect plenty of rainfall. Madang records an average of 163 mm (6.4 in) in September, putting it among the wetter months for Momase Region, Papua New Guinea.

Is September a Good Time to Visit Momase Region, Papua New Guinea?

In our opinion, September is a good time to visit Momase Region, Papua New Guinea with overall tolerable weather in Madang. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, the best visiting conditions can be found in August offering mostly pleasant weather in Madang. On the other hand, the weather in January, February, March, April, May, October, November and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Momase Region.

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

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.