Climate Insights for Surabaya

The climate in Surabaya is hot. The average annual temperature is 29°C and approximately 1,937 mm of precipitation falls per year. March is the wettest month, receiving around 300 mm of rainfall. Surabaya sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in Surabaya is hot. The average annual temperature is 83°F and approximately 76.3 in of precipitation falls per year. March is the wettest month, receiving around 11.8 in of rainfall. Surabaya sits near the equator, so seasonal temperature differences are minimal throughout the year.

Surabaya has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is October, when average highs reach 33°C and the mean temperature sits around 29°C. July is the coolest month, with minimum temperatures around 25°C and an average of 28°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.Surabaya has relatively stable temperatures year-round, staying within a 15°F range. The warmest month is October, when average highs reach 92°F and the mean temperature sits around 85°F. July is the coolest month, with minimum temperatures around 77°F and an average of 82°F. Daily temperature variation is modest, with an average difference of 11°F between highs and lows.

Surabaya is a fairly wet location, receiving approximately 1,937 mm of precipitation annually, which averages out to around 161 mm per month. The wettest month is March, averaging 300 mm of rainfall. February and January also tend to see above-average precipitation. The driest month is August, with just 16 mm. That's 284 mm less than March, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.Surabaya is a fairly wet location, receiving approximately 76.3 in of precipitation annually, which averages out to around 6.3 in per month. The wettest month is March, averaging 11.8 in of rainfall. February and January also tend to see above-average precipitation. The driest month is August, with just 0.6 in. That's 11.2 in less than March, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Surabaya is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.Surabaya is relatively calm, with an average annual wind speed of 4mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is February, averaging 6mph, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 3mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3mph gap between the calmest and windiest months.

The table below shows monthly climate averages for Surabaya based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Surabaya based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.