Sumatra in july: average Weather, Temperature and Climate, Where to go?
Weather on the island of Sumatra in july 2025
In this section, check out the weather forecast for july for most popular cities in Sumatra. These datas are statistics for july from weather reports for over 10 years. The percentage indicates the probability of having the weather indicated.
Average weather in july in Medan
tolerable weather UV index: 7
Weather at 6am
77°F
Clear/Sunny
40% of time
28%
26%
5%
Weather at 12pm
94°F
Clear/Sunny
42% of time
36%
19%
2%
Weather at 6pm
81°F
Moderate rain at times
34% of time
24%
22%
17%
Weather at 3am
76°F
35%
33%
21%
7%
Where to go on the island of Sumatra in july?
Where to go on the island of Sumatra in july: destination map
perfect weather
good
tolerable
bad
very bad
Where to go in each region in july?
| Bangka-Belitung Islands (Pulau Bangka, Pulau Belitung...) | 86°F to 88°F | 12 days | 86°F | good weather |
| Central of Sumatra (Padang City, Dumai, Bukittinggi...) | 85°F to 94°F | 10 à 16 days | 86°F | good weather* |
| North of Sumatra (Medan, Banda Aceh, Pematangsiantar...) | 81°F to 95°F | 5 à 19 days | 86°F | tolerable weather* |
| Riau Islands (Batam, Tanjungpinang...) | 88°F | 8 à 13 days | 86°F | good weather* |
| South of Sumatra (Palembang, Bengkulu, Bandar Lampung...) | 86°F to 92°F | 7 à 12 days | 85°F to 86°F | good weather |
Where should you go on the island of Sumatra in july when it comes to the weather?
Remember:
The climate on the island of Sumatra in july ranges from good to tolerable depending on the region and city.
It is not perfect, however, the weather in Sumatra in july is good in Sibolga, Padangsidempuan, Banda Aceh, Pariaman and Sigli. I allows to appreciate tours in these areas. And even why not take a little time to relax under the sun!
If you do not go to spend your time in a lounger by the pool, but, for example to go sightseeing around, the cities of Langsa, Palembang, Lac Maninjau, Tanjungpinang, Tebingtinggi, Gunung Leuser National Park, Bandar Lampung, Kisaran, Batam, Bukit Lawang, lake Toba, Berastagi, Dumai, Metro, Jambi City, Bukittinggi, Payakumbuh, Samosir, Pematangsiantar, Parapat, Padang City, Lhokseumawe, Pekanbaru, Medan, Bengkulu and Takengon have a ok but correct weather for that in july. Finally, we advise you to avoid you get in the cities of Simpang and Gunungsitoli (Pulau Nias) in july because the climate is bad.
Climate on the island of Sumatra in july
Climate in Medan in july
In july, maximum temperature is 94°F and minimum temperature is 77°F (for an average temperature of 85°F). The climate is burning around this city in july. With 6.8in over 13 days, rain may occur during your stay. But this is reasonably and it is only of temporary showers.
With proper weather, july is okay (but not the best time) for traveling in this city.
| July | |||
| Average temperature | 85°F | ||
| Highest temperature | 94°F | ||
| Lowest temperature | 77°F | ||
| Rainfall | 6.8in | ||
| Number of days with rainfall | 13 day(s) (43%) | ||
| Humidity | 85% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 32% | ||
| Length of day | 12:18 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Palembang in july
In july, maximum temperature is 92°F and minimum temperature is 76°F (for an average temperature of 85°F). The climate is very warm in that area in this month. With 5.4in over 9 days, you will experience some showers throughout your vacations. But this is moderate and you will not be too bothered by it.
With proper weather, the month of july is okay (but not good time) for traveling in that area in Indonesia.
| July | |||
| Average temperature | 85°F | ||
| Highest temperature | 92°F | ||
| Lowest temperature | 76°F | ||
| Rainfall | 5.4in | ||
| Number of days with rainfall | 9 day(s) (30%) | ||
| Humidity | 94% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 46% | ||
| Length of day | 11:58 | ||
| Our opinion at whereandwhen.net | good |
Climate in Banda Aceh in july
In the month of july, the mean temperature in Banda Aceh is 85°F (maximum temperature is 90°F and minimum temperature is 77°F). The climate is very hot in this location in this month. With about 4in over 5 days, rainfall is infrequent throughout your holidays.
With a good weather, the month of july is a recommended month to go in this locality in Indonesia.
| July | |||
| Average temperature | 85°F | ||
| Highest temperature | 90°F | ||
| Lowest temperature | 77°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 4in | ||
| Number of days with rainfall | 5 day(s) (16%) | ||
| Humidity | 81% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 33% | ||
| Length of day | 12:25 | ||
| Our opinion at whereandwhen.net | good |
Climate in Bandar Lampung in july
In the month of july, the mean temperature in Bandar Lampung is 83°F (maximum temperature is 88°F and minimum temperature is 77°F). The climate is very warm in that locality in july. With 5in over 9 days, you risk getting wet slightly for your holidays. But this is pretty moderate and it is only of temporary showers.
With proper weather, the month of july is okay (but not good time) for traveling in this city in Sumatra.
| July | |||
| Average temperature | 83°F | ||
| Highest temperature | 88°F | ||
| Lowest temperature | 77°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 5in | ||
| Number of days with rainfall | 9 day(s) (29%) | ||
| Humidity | 91% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 40% | ||
| Length of day | 11:50 | ||
| Our opinion at whereandwhen.net | good |
Climate in Bengkulu in july
In the month of july, maximum temperature is 86°F and minimum temperature is 77°F (for an average temperature of 83°F). The climate is very hot around this city in this month. With 8.1in over 12 days, rain may occur throughout your holidays. But this is pretty reasonably and it is only of temporary showers.
With a correct weather, the month of july is okay (but not the best time) for traveling in Bengkulu in Indonesia.
| July | |||
| Average temperature | 83°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 77°F | ||
| Sea temperature | 86°F | ||
| Rainfall | 8.1in | ||
| Number of days with rainfall | 12 day(s) (39%) | ||
| Humidity | 86% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 34% | ||
| Length of day | 11:55 | ||
| Our opinion at whereandwhen.net | good |
All cities on the island of Sumatra in july
| Medan in july | tolerable weather |
| Palembang in july | good weather |
| Banda Aceh in july | good weather |
| Bandar Lampung in july | good weather |
| Bengkulu in july | good weather |
| Bukittinggi in july | tolerable weather |
| Dumai in july | good weather |
| Gunungsitoli (Pulau Nias) in july | tolerable weather |
| Jambi City in july | good weather |
| Padang City in july | tolerable weather |
| Pematangsiantar in july | tolerable weather |
| Batam in july | tolerable weather |
| Berastagi in july | tolerable weather |
| Way Kambas National Park in july | good weather |
| Bukit Lawang in july | good weather |
| Bukit Tigapuluh National Park in july | good weather |
| Calang in july | tolerable weather |
| Kerinci Seblat National Park in july | tolerable weather |
| Lac Maninjau in july | tolerable weather |
| Lake Toba (Danau Toba) in july | tolerable weather |
| Parapat in july | tolerable weather |
| Gunung Leuser National Park in july | tolerable weather |
| Payakumbuh in july | tolerable weather |
| Pulau Bangka in july | good weather |
| Pulau Belitung in july | good weather |
| Pulau Rupat in july | good weather |
| Pulau Siberut in july | tolerable weather |
Weather data for Sumatra in july:
Weather data for Sumatra in july 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.