Sumatra Weather in July

Average temperatures, rainfall, sunshine and the best places to visit in Sumatra, Indonesia in July.

Planning a trip to Sumatra, Indonesia this July? Here's what you need to know about the weather:

What to Expect in Sumatra in July

Sumatra, Indonesia is a region in Indonesia. July in Sumatra generally has temperatures that range from warm to very warm, with precipitation levels ranging from high to heavy.

Temperatures

The average highest temperatures fluctuate between warm in Tuk Tuk at 28°C (82°F) to very warm in Medan at 33°C (91°F). Nighttime temperatures generally drop to 23°C (73°F) in Medan and 19°C (66°F) in Tuk Tuk. The temperatures mentioned for daytime and nighttime are general averages. However there can be days that surpass these temperatures. So equip yourself with clothing that can handle the potential heat.

To learn more about the conditions in specific areas of Sumatra, Indonesia, check out the map below.

Precipitation

In July, precipitation varies across different areas. From high rainfall in Kalianda with an average of 102 mm (4 in) to heavy rainfall in Matur with 261 mm (10 in).

Average sunshine

Sunshine amounts are decent in most places. Medan gets approximately 155 hours of sunlight in July, offering a reasonable amount of both bright and cloudy periods. Curious about sunnier destinations? Our weather planner makes it easy to find places worldwide with pleasant weather.

Explore Sumatra by month

Best Places to Visit in Sumatra in July

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

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 Sumatra

What is the weather like in July for some of the most popular destinations in Sumatra, Indonesia?

Temperature range in Sumatra (July)

Precipitation variation in Sumatra (July)

Medan

In July Medan generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

June
July
August
Max temperature
33°C (91°F)
33°C (91°F)
33°C (91°F)
Min temperature
24°C (75°F)
23°C (73°F)
23°C (73°F)
Monthly sun hours
160 hours
155 hours
145 hours
Monthly rainfall
208 mm (8.2 in)
206 mm (8.1 in)
241 mm (9.5 in)
Monthly rainy days
9 days
9 days
13 days
Weather conditions

Pekanbaru

In July Pekanbaru generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are tolerable that month.

June
July
August
Max temperature
33°C (91°F)
33°C (91°F)
33°C (91°F)
Min temperature
24°C (75°F)
24°C (75°F)
24°C (75°F)
Monthly rainfall
144 mm (5.7 in)
134 mm (5.3 in)
170 mm (6.7 in)
Monthly rainy days
12 days
13 days
15 days
Weather conditions

Tanjungpandan

In July Tanjungpandan generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 25°C (77°F) and high monthly rainfall. So on average the conditions are tolerable that month.

June
July
August
Max temperature
31°C (88°F)
31°C (88°F)
32°C (90°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly rainfall
176 mm (6.9 in)
129 mm (5.1 in)
93 mm (3.7 in)
Monthly rainy days
14 days
11 days
10 days
Weather conditions

Bukittinggi

In July Bukittinggi generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 19°C (66°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

June
July
August
Max temperature
29°C (84°F)
28°C (82°F)
28°C (82°F)
Min temperature
20°C (68°F)
19°C (66°F)
19°C (66°F)
Monthly rainfall
212 mm (8.3 in)
241 mm (9.5 in)
324 mm (13 in)
Monthly rainy days
14 days
14 days
16 days
Weather conditions

Matur

In July Matur generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 20°C (68°F) and heavy monthly rainfall. So on average the conditions are poor that month.

June
July
August
Max temperature
29°C (84°F)
29°C (84°F)
28°C (82°F)
Min temperature
20°C (68°F)
20°C (68°F)
20°C (68°F)
Monthly rainfall
228 mm (9 in)
261 mm (10 in)
359 mm (14 in)
Monthly rainy days
13 days
14 days
16 days
Weather conditions

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

Popular cities in July

Day & night temperatures, rainfall and average weather in Sumatra in July.

City Weather Day temp Night temp Rainfall
Medan 33°C (91°F) 23°C (73°F) 206 mm (8.1 in)
Pekanbaru 33°C (91°F) 24°C (75°F) 134 mm (5.3 in)
Tanjungpandan 31°C (88°F) 25°C (77°F) 129 mm (5.1 in)
Bukittinggi 28°C (82°F) 19°C (66°F) 241 mm (9.5 in)
Matur 29°C (84°F) 20°C (68°F) 261 mm (10 in)
Dumai 33°C (91°F) 24°C (75°F) 166 mm (6.5 in)

Sumatra weather in July: frequently asked questions

What is the weather like in Sumatra, Indonesia in July?

Sumatra, Indonesia typically experiences poor weather in July, part of the season. Daytime highs in Medan average around 33°C (91°F), and temperatures drop to about 23°C (73°F) at night.

What is the average temperature in Sumatra, Indonesia in July?

Average temperatures in Sumatra, Indonesia during July range from a nighttime low near 23°C (73°F) to a daytime high around 33°C (91°F) in Medan.

Does Sumatra, Indonesia get a lot of rain in July?

Yes. July brings heavy rainfall to Sumatra, Indonesia, with Medan averaging around 206 mm (8.1 in). Expect frequent showers and pack accordingly.

Is July a Good Time to Visit Sumatra, Indonesia?

Given the typically poor weather conditions in Medan, July may not be the ideal time to visit Sumatra, Indonesia.

On average, the best time to visit Sumatra, Indonesia is in February with generally unpleasant weather in Medan.

Interested in more climate information?

We have much more information about the climate in Sumatra.

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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