East Java

East Java Weather in January

Average temperatures, rainfall, sunshine and the best places to visit in East Java, Indonesia in January.

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Surabaya Malang Batu Banyuwangi

Planning a journey to East Java, Indonesia this January and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in East Java in January

East Java, Indonesia is a region in Indonesia. January in East Java generally has temperatures that range from warm to very warm, with heavy precipitation.

Temperatures

During the day the temperature is warm in Malang at 27°C (81°F) and very warm in Surabaya at 32°C (90°F). As night falls, temperatures generally drop to 25°C (77°F) in Surabaya and 20°C (68°F) in Malang. 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.

For specific regional insights in East Java, Indonesia, refer to the map provided below.

Precipitation

In January, precipitation varies across different areas. From heavy rainfall in Surabaya with an average of 296 mm (12 in) to heavy rainfall in Batu with 497 mm (20 in).

Average sunshine

Sunshine amounts are decent in most places. Surabaya gets approximately 138 hours of sunlight in January, 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 East Java by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in East Java in January

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

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 East Java

What is the weather like in January for some of the most popular destinations in East Java, Indonesia?

Temperature range in East Java (January)

Precipitation variation in East Java (January)

Surabaya

In January Surabaya generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
33°C (91°F)
32°C (90°F)
32°C (90°F)
Min temperature
26°C (79°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
137 hours
138 hours
124 hours
Monthly rainfall
282 mm (11 in)
296 mm (12 in)
304 mm (12 in)
Monthly rainy days
14 days
17 days
17 days
Weather conditions
poor
poor
poor
Climate in Surabaya →

Malang

In January Malang generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 20°C (68°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
28°C (82°F)
27°C (81°F)
27°C (81°F)
Min temperature
20°C (68°F)
20°C (68°F)
20°C (68°F)
Monthly rainfall
407 mm (16 in)
445 mm (18 in)
471 mm (19 in)
Monthly rainy days
16 days
19 days
19 days
Weather conditions
poor
poor
poor
Climate in Malang →

Batu

In January Batu generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 20°C (68°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
28°C (82°F)
28°C (82°F)
28°C (82°F)
Min temperature
20°C (68°F)
20°C (68°F)
20°C (68°F)
Monthly rainfall
444 mm (17 in)
497 mm (20 in)
526 mm (21 in)
Monthly rainy days
17 days
20 days
19 days
Weather conditions
poor
poor
poor
Climate in Batu →

Banyuwangi

In January Banyuwangi generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
29°C (84°F)
29°C (84°F)
29°C (84°F)
Min temperature
24°C (75°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
169 hours
160 hours
140 hours
Monthly rainfall
297 mm (12 in)
373 mm (15 in)
390 mm (15 in)
Monthly rainy days
15 days
19 days
18 days
Weather conditions
poor
poor
poor
Climate in Banyuwangi →

Kediri

In January Kediri generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
32°C (90°F)
31°C (88°F)
31°C (88°F)
Min temperature
23°C (73°F)
23°C (73°F)
23°C (73°F)
Monthly rainfall
335 mm (13 in)
408 mm (16 in)
435 mm (17 in)
Monthly rainy days
15 days
18 days
18 days
Weather conditions
poor
poor
poor
Climate in Kediri →

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

In our records: Indonesia January extremes

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

  • From our sources, the wettest January day in Indonesia brought 389 mm (15 in) in Manado on January 27, 2023.

Popular cities in January

Day & night temperatures, rainfall and average weather in East Java in January.

City Weather Day temp Night temp Rainfall
Surabaya 32°C (90°F) 25°C (77°F) 296 mm (12 in)
Malang 27°C (81°F) 20°C (68°F) 445 mm (18 in)
Batu 28°C (82°F) 20°C (68°F) 497 mm (20 in)
Banyuwangi 29°C (84°F) 24°C (75°F) 373 mm (15 in)
Kediri 31°C (88°F) 23°C (73°F) 408 mm (16 in)
Kalibaru 29°C (84°F) 22°C (72°F) 406 mm (16 in)

East Java weather in January: frequently asked questions

What is the weather like in East Java, Indonesia in January?

January in East Java, Indonesia brings poor weather. In Surabaya, daytime temperatures are typically around 32°C (90°F) and nighttime lows hover near 25°C (77°F).

What is the average temperature in East Java, Indonesia in January?

Daytime temperatures in Surabaya peak at roughly 32°C (90°F) in January, dropping to about 25°C (77°F) overnight.

Does East Java, Indonesia get a lot of rain in January?

Yes. January brings heavy rainfall to East Java, Indonesia, with Surabaya averaging around 296 mm (12 in). Expect frequent showers and pack accordingly.

Is January a Good Time to Visit East Java, Indonesia?

In our opinion, January may not be the ideal time to visit East Java, Indonesia due to the typically poor weather in Surabaya.

Generally speaking, July and August provide tolerable weather in Surabaya. On the other hand, the months of January, February, March, April, September, October, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in East Java.

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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