East Java weather
Today's sky, the hour-by-hour rain chance and the 16-day forecast for East Java, Indonesia. Like most weather services, we show East Java at one spot: Surabaya, its largest city. At 4:45 AM local time it was cloudy and 26°C (79°F). Light rain for 1 of the next 24 hours (under 1 mm/h, 0.2 mm total) — cloudy, but fine to be out. Best months for weather: Jun–Sep.
Current conditions
- Clouds
- 97%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Light rain for 1 of the next 24 hours (under 1 mm/h, 0.2 mm total) — cloudy, but fine to be out
Daily Forecast
Best Time to Visit
Peak season Jun–SepOff season Dec–Mar
About Surabaya weather
Is it raining in Surabaya right now?
No. It’s cloudy and 26° right now. Light rain for 1 of the next 24 hours (under 1 mm/h, 0.2 mm total) — cloudy, but fine to be out.
What’s the weather like in Surabaya this week?
Over the next 7 days, expect highs of 33–34° and lows of 26–27°. Rain is likely on 5 of 7 days (Monday, Tuesday, Thursday, Friday, Saturday). The driest day looks like Tuesday.
Has it been raining in Surabaya lately?
In the past 7 days, Surabaya had 5 rainy days and 18.7 mm of rain in total.
What should I pack for Surabaya?
For the coming week, bring an umbrella or rain jacket, light, breathable clothes and sunscreen.
East Java weather by month
When is the best time to visit East Java?
Based on weather alone, the best time to visit East Java is Jun–Sep, according to NASA's 2001–2025 climate averages. Dec–Mar tends to be the least pleasant. Average highs run from 29°C (83°F) in February to 33°C (92°F) in September.
What is the rainiest month in East Java?
January is the wettest month, with about 337 mm (13.3 in) of rain on average. August is the driest, with about 11 mm (0.4 in).
What is the hottest month in East Java?
September is the warmest, with average highs of 33°C (92°F) and lows of 25°C (78°F). February is the coolest, with highs of 29°C (83°F) and lows of 25°C (78°F).
Does East Java have a rainy season?
Yes. Dec–Apr is the rainy season (150 mm or more a month), while Jul–Sep is usually dry (under 60 mm).
How warm is the sea in East Java?
The sea is warmest in November at about 32°C (90°F) and coolest in July at about 30°C (85°F). It is warm enough for swimming all year.
East Java weather month by month
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis for Surabaya), sea temperature from Open-Meteo Marine, forecast and current conditions from Open-Meteo. Page updated . How we rate months
Compare places in East Java
Weather can differ a lot within East Java: coasts, hills and mountains each have their own climate.
| Place | Best months | Rainy months | Highs | Rain a year |
|---|---|---|---|---|
| Surabaya | Jun–Sep | Dec–Apr | 29–33°C | 1,882 mm |
| Malang | Jun–Oct | Dec–Apr | 27–32°C | 1,868 mm |
| Situbondo | Jun–Oct | Dec–Apr | 29–32°C | 1,646 mm |
| Kediri | Jun–Oct | Nov–Apr | 28–31°C | 1,943 mm |
| Jember | Jun–Oct | Dec–Apr | 26–32°C | 1,647 mm |
| Probolinggo | Jun–Oct | Dec–Apr | 28–32°C | 1,756 mm |
| Batu | Jun–Oct | Dec–Apr | 27–32°C | 1,868 mm |
| Pasuruan | Jun–Sep | Dec–Apr | 29–33°C | 1,762 mm |
| Madiun | Jun–Sep | Nov–Apr | 28–34°C | 1,945 mm |
| Singosari | Jun–Oct | Dec–Apr | 27–32°C | 1,868 mm |
| Blitar | Jun–Oct | Nov–Apr | 28–31°C | 1,943 mm |
| Mojokerto | Jun–Sep | Dec–Apr | 28–35°C | 1,849 mm |
Cities and towns in East Java
- Surabaya
- Malang
- Situbondo
- Kediri
- Jember
- Probolinggo
- Batu
- Pasuruan
- Madiun
- Singosari
- Blitar
- Mojokerto
- Sidoarjo
- Jombang
- Lumajang
- Banyuwangi
- Lawang
- Pare
- Pamekasan
- Bojonegoro
- Bangkalan
- Bangil
- Sumenep
- Kedungwaru
- Genteng
- Gedangan
- Ponorogo
- Tuban
- Kebomas
- Gresik
- Bondowoso
- Nganjuk
- Tulungagung
- Muncar
- Tulangan Utara
- Kertosono
- Lamongan
- Besuki
- Sampang
- Kepanjen
- Sangkapura
- Gampengrejo
- Buduran
- Balung
- Kencong
- Panji
- Diwek
- Krian
- Srono
- Sumberpucung
- Pandaan
- Tanggulangin
- Boyolangu
- Panarukan
- Pakisaji
- Singojuruh
- Wongsorejo
- Trenggalek
- Kraksaan
- Paciran
- Babat
- Driyorejo
- Ngunut
- Soko
- Prigen
- Kalianget
- Mojoagung
- Dampit
- Ngoro
- Gambiran Satu
- Kamal
- Gongdanglegi Kulon
- Ngawi