Weather on the island of Sumatra in may 2025

In this section, you have access to the weather forecast for the month of may for most popular cities in Sumatra. These predictions are statistics for the month of may from weather reports for over 10 years. The percentage indicates the possibility of having the weather indicated.



Where to go on the island of Sumatra in may?

Where to go on the island of Sumatra in may: destination map

Legend: perfect weather good tolerable bad very bad

Where to go in each region in may?

Bangka-Belitung Islands
(Pulau Bangka, Pulau Belitung...)
88°F to 90°F17 à 25 days86°F
tolerable weather*
Central of Sumatra
(Padang City, Dumai, Bukittinggi...)
86°F to 94°F17 à 24 days86°F to 88°F
tolerable weather*
North of Sumatra
(Medan, Banda Aceh, Pematangsiantar...)
81°F to 94°F13 à 27 days86°F to 88°F
tolerable weather*
Riau Islands
(Batam, Tanjungpinang...)
90°F10 à 16 days88°F
good weather*
South of Sumatra
(Palembang, Bengkulu, Bandar Lampung...)
88°F to 92°F15 à 19 days86°F
tolerable weather
*over most of the region. Weather may vary locally.


Where should you go on the island of Sumatra in may when it comes to the weather?

Remember:
The climate on the island of Sumatra in may ranges from tolerable to very bad depending on the region and city.

May is not the best month to travel to in Sumatra. The weather in Langsa, Palembang, Lac Maninjau, Tanjungpinang, Tebingtinggi, Gunung Leuser National Park, Bandar Lampung, Kisaran, Batam, Bukit Lawang, Metro, Bukittinggi, Payakumbuh, Sibolga, Padangsidempuan, Padang City, Lhokseumawe, Pekanbaru, Medan, Bengkulu, Takengon, Banda Aceh, Pariaman and Sigli is OK but just acceptable. The sun is not there all the time and you may be faced the rain often. Nevertheless, if you don't plan a pool & relaxation trip in Sumatra but rather discovery of heritage or a trek, this climate may be good enough for you. In addition, there are certainly fewer tourists during this period.

But it is finally better than in Simpang, lake Toba, Berastagi, Dumai, Jambi City, Samosir, Pematangsiantar, Parapat and Gunungsitoli (Pulau Nias) and surrounding areas where the climate is very bad. It is not recommended to go to these areas this month.


Climate on the island of Sumatra in may

Climate in Medan in may

In the month of may, the mean temperature in Medan is 86°F (maximum temperature is 94°F and minimum temperature is 79°F). The climate is very hot here in this month. With 8.7in over 16 days, you risk getting wet slightly during your journey. But this is rather reasonably and it is only of temporary showers.
With proper weather, may is okay (but not the best time) for traveling in Medan.

May
Average temperature 86°F
Highest temperature 94°F
Lowest temperature 79°F
Rainfall 8.7in
Number of days with rainfall 16 day(s)
(50%)
Humidity 87%
Daily sunshine hours 11
Cloud cover 36%
Length of day 12:17
Our opinion at whereandwhen.net tolerable
more information about the climate in Medan in may

Climate in Palembang in may

In the month of may, maximum temperature is 92°F and minimum temperature is 79°F (for an average temperature of 86°F). The climate is very hot around this city in may. With 8.4in over 15 days, rainfall can happen during your vacations. But this is pretty reasonably and it will not be continuous.
With a correct climate, may is okay (but not the best time) for traveling in Palembang in Indonesia.

May
Average temperature 86°F
Highest temperature 92°F
Lowest temperature 79°F
Rainfall 8.4in
Number of days with rainfall 15 day(s)
(49%)
Humidity 94%
Daily sunshine hours 11
Cloud cover 48%
Length of day 11:59
Our opinion at whereandwhen.net tolerable
more information about the climate in Palembang in may

Climate in Banda Aceh in may

In the month of may, the mean temperature in Banda Aceh is 85°F (maximum temperature is 90°F and minimum temperature is 79°F). The climate is very warm in this city in the month of may. With 10in over 13 days, you will experience some showers for your vacations. But this is pretty moderate and it is only of temporary showers.
With a correct climate, the month of may is okay (but not good month) for traveling in this city.

May
Average temperature 85°F
Highest temperature 90°F
Lowest temperature 79°F
Sea temperature 87°F
Rainfall 10in
Number of days with rainfall 13 day(s)
(42%)
Humidity 84%
Daily sunshine hours 11
Cloud cover 37%
Length of day 12:22
Our opinion at whereandwhen.net tolerable
more information about the climate in Banda Aceh in may

Climate in Bandar Lampung in may

In the month of may, the mean temperature in Bandar Lampung is 85°F (maximum temperature is 90°F and minimum temperature is 79°F). The climate is very hot in this location in this month. With 9.9in over 18 days, rain may occur during your trip. But this is rather moderate and you will not be too bothered by it.
With proper weather, may is okay (but not good time) for traveling in Bandar Lampung.

May
Average temperature 85°F
Highest temperature 90°F
Lowest temperature 79°F
Sea temperature 86°F
Rainfall 9.9in
Number of days with rainfall 18 day(s)
(59%)
Humidity 90%
Daily sunshine hours 10
Cloud cover 41%
Length of day 11:53
Our opinion at whereandwhen.net tolerable
more information about the climate in Bandar Lampung in may

Climate in Bengkulu in may

In the month of may, maximum temperature is 88°F and minimum temperature is 79°F (for an average temperature of 85°F). The climate is very warm in this location in may. With 10.1in over 15 days, you risk getting wet slightly for your holidays. But this is pretty reasonably and you will not be too bothered by it.
With a correct weather, may is okay (but not the best month) for traveling in Bengkulu.

May
Average temperature 85°F
Highest temperature 88°F
Lowest temperature 79°F
Sea temperature 87°F
Rainfall 10.1in
Number of days with rainfall 15 day(s)
(48%)
Humidity 86%
Daily sunshine hours 11
Cloud cover 36%
Length of day 11:57
Our opinion at whereandwhen.net tolerable
more information about the climate in Bengkulu in may


All cities on the island of Sumatra in may

Medan in maytolerable weather
Palembang in maytolerable weather
Banda Aceh in maytolerable weather
Bandar Lampung in maytolerable weather
Bengkulu in maytolerable weather
Bukittinggi in maytolerable weather
Dumai in maytolerable weather
Gunungsitoli (Pulau Nias) in maytolerable weather
Jambi City in maytolerable weather
Padang City in mayvery bad weather
Pematangsiantar in maybad weather
Batam in maytolerable weather
Berastagi in mayvery bad weather
Way Kambas National Park in maytolerable weather
Bukit Lawang in maytolerable weather
Bukit Tigapuluh National Park in maybad weather
Calang in maytolerable weather
Kerinci Seblat National Park in maytolerable weather
Lac Maninjau in maytolerable weather
Lake Toba (Danau Toba) in mayvery bad weather
Parapat in maybad weather
Gunung Leuser National Park in maytolerable weather
Payakumbuh in maybad weather
Pulau Bangka in maybad weather
Pulau Belitung in maytolerable weather
Pulau Rupat in maytolerable weather
Pulau Siberut in mayvery bad weather
See full list of cities (45)


Weather data for Sumatra in may:

Weather data for Sumatra in may is derived from an average of the weather forecast since 2009 on the island of Sumatra. There is a margin of error and these forecasts are to be considered as general information only. The weather on the island of Sumatra can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Sumatra.


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