Surabaya Weather and Climate: A Comprehensive Guide
Surabaya features a tropical wet and dry climate with distinct wet and dry seasons. The city's dry season from June to October is the best time of year to visit Surabaya.
Average maximum day and minimum night temperature
The climate in Surabaya remains fairly constant, offering very warm temperatures throughout the year. Average maximum daytime temperatures range from a very warm 35°C in October, the warmest time of the year, to a very warm 32°C during cooler months like August.
At night, temperatures typically drop to an average of around 24°C during these months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Surabaya is known for its substantial rainfall, with annual precipitation reaching 1805 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, February receives heavy rainfall, averaging 304 mm of precipitation, recorded across 17 rainy days. In contrast, the drier season, August brings less rainfall, with 8.8 mm over a single rainy day. For more details, please visit our Surabaya Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Surabaya. While August receives considerable daily sunshine with up to 8.2 hours, February marks the darkest time of the year, where sunshine is scarce with only 4.1 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is high throughout the year in Surabaya.
The city experiences its highest humidity in February, reaching 68%. In September, the humidity drops to its lowest level at 54%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
broken clouds and thunder broken clouds and thunder broken clouds and thunderForecast for Surabaya
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3 m/s
4 m/s
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit Surabaya in Indonesia
Surabaya has high temperatures year round ranging between 32°C and 34°C.The best time to visit is during the drier months: June, July, August and September.
Other facts from our historical weather data:
Rainy season in Surabaya occurs in the months of January, February, March, April, November and December.
October has an average maximum temperature of 35°C and is the hottest month of the year.
The coolest month is August with an average maximum temperature of 32°C.
February tops the wettest month list with 304 mm of rainfall.
August is the driest month with 9 mm of precipitation.
August is the sunniest month with an average of 247 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
