Sumatra in may: average Weather, Temperature and Climate, Where to go?
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.
Average weather in may in Medan
tolerable weather UV index: 7
Weather at 6am
79°F
Moderate rain at times
37% of time
29%
24%
8%
Weather at 12pm
94°F
Partly Cloudy
41% of time
32%
25%
2%
Weather at 6pm
83°F
Moderate rain at times
27% of time
24%
24%
23%
Weather at 3am
77°F
48%
24%
16%
10%
Where to go on the island of Sumatra in may?
Where to go on the island of Sumatra in may: destination map
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°F | 17 à 25 days | 86°F | tolerable weather* |
| Central of Sumatra (Padang City, Dumai, Bukittinggi...) | 86°F to 94°F | 17 à 24 days | 86°F to 88°F | tolerable weather* |
| North of Sumatra (Medan, Banda Aceh, Pematangsiantar...) | 81°F to 94°F | 13 à 27 days | 86°F to 88°F | tolerable weather* |
| Riau Islands (Batam, Tanjungpinang...) | 90°F | 10 à 16 days | 88°F | good weather* |
| South of Sumatra (Palembang, Bengkulu, Bandar Lampung...) | 88°F to 92°F | 15 à 19 days | 86°F | tolerable weather |
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 |
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 |
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 |
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 |
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 |
All cities on the island of Sumatra in may
| Medan in may | tolerable weather |
| Palembang in may | tolerable weather |
| Banda Aceh in may | tolerable weather |
| Bandar Lampung in may | tolerable weather |
| Bengkulu in may | tolerable weather |
| Bukittinggi in may | tolerable weather |
| Dumai in may | tolerable weather |
| Gunungsitoli (Pulau Nias) in may | tolerable weather |
| Jambi City in may | tolerable weather |
| Padang City in may | very bad weather |
| Pematangsiantar in may | bad weather |
| Batam in may | tolerable weather |
| Berastagi in may | very bad weather |
| Way Kambas National Park in may | tolerable weather |
| Bukit Lawang in may | tolerable weather |
| Bukit Tigapuluh National Park in may | bad weather |
| Calang in may | tolerable weather |
| Kerinci Seblat National Park in may | tolerable weather |
| Lac Maninjau in may | tolerable weather |
| Lake Toba (Danau Toba) in may | very bad weather |
| Parapat in may | bad weather |
| Gunung Leuser National Park in may | tolerable weather |
| Payakumbuh in may | bad weather |
| Pulau Bangka in may | bad weather |
| Pulau Belitung in may | tolerable weather |
| Pulau Rupat in may | tolerable weather |
| Pulau Siberut in may | very bad weather |
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.