Samosir Island Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Samosir Island, Indonesia in September.

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Ambarita

Planning a journey to Samosir Island, Indonesia 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 Samosir Island in September

Samosir Island, Indonesia is a region in Indonesia. September in Samosir Island generally has warm temperatures, with heavy precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 27°C (81°F) and nighttime temperatures around 19°C (66°F) in Ambarita.

For specific regional insights in Samosir Island, Indonesia, refer to the map provided below.

Precipitation

September is a very rainy month with an average rainfall of around 235 mm (9.3 in) in Ambarita.

Explore Samosir Island by month

Pick a month to see the average temperature, rainfall and sunshine in Samosir Island — and find the best time to visit. (based on Ambarita)

January26°C (79°F) February27°C (81°F) March27°C (81°F) April27°C (81°F) May28°C (82°F) June28°C (82°F) This monthJuly27°C (81°F) August27°C (81°F) September27°C (81°F) October26°C (79°F) November26°C (79°F) December26°C (79°F)
Best Time to Visit Samosir Island →

Best Places to Visit in Samosir Island in September

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

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 Samosir Island

What is the weather like in September for the most popular destinonation in Samosir Island, Indonesia?

Ambarita

In September Ambarita generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 19°C (66°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Min temperature
19°C (66°F)
19°C (66°F)
19°C (66°F)
Monthly rainfall
191 mm (7.5 in)
235 mm (9.3 in)
271 mm (11 in)
Monthly rainy days
15 days
17 days
20 days
Weather conditions
tolerable
unpleasant
poor
Climate in Ambarita →

Is your destination not in the list? Have a look at all destinations in Samosir Island, in Indonesia.

In our records: Indonesia September extremes

Notable September records observed across cities in Indonesia in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the coldest September daytime high in Indonesia was 18°C (64°F) in Bandung on September 23, 2003.

Samosir Island weather in September: frequently asked questions

What is the weather like in Samosir Island, Indonesia in September?

September in Samosir Island, Indonesia brings unpleasant weather. In Ambarita, daytime temperatures are typically around 27°C (81°F) and nighttime lows hover near 19°C (66°F).

What is the average temperature in Samosir Island, Indonesia in September?

Average temperatures in Samosir Island, Indonesia during September range from a nighttime low near 19°C (66°F) to a daytime high around 27°C (81°F) in Ambarita.

Does Samosir Island, Indonesia get a lot of rain in September?

Rainfall in Samosir Island, Indonesia peaks during September. Ambarita averages roughly 235 mm (9.3 in), so frequent and sometimes heavy showers are the norm.

Is September a Good Time to Visit Samosir Island, Indonesia?

In our opinion, September may not be the ideal time to visit Samosir Island, Indonesia due to the typically unpleasant weather in Ambarita.

Generally speaking, the best visiting conditions can be found in February, May, June and July offering mostly pleasant weather in Ambarita. In contrast, October, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Samosir Island.

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

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.

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