Surabaya Weather in December

During December, Surabaya experiences very high daytime temperatures of 33°C (91°F) and cooler nights around 26°C (79°F). December sits within the rainy season, so expect regular and often heavy rainfall.

Rainfall in Surabaya in December

As part of the rainy season, Surabaya sees around 14 days of rain in December, with an average of 282 mm (11 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.

Temperature in Surabaya in December

In December, Surabaya sees very high temperatures, with highs of 33°C (91°F). Nights drop to around 26°C (79°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. At 26°C (79°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.

Sunshine in Surabaya in December

You can expect a moderate amount of sunlight, with approximately 137 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Surabaya. Our weather planner can help you explore destinations with more pleasant weather conditions.