Surabaya weather in April
Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Fair
Best time to visit: June – September
What is the weather like in Surabaya in April?
In April, Surabaya is hot: daytime highs average 30 °C, and even at night it stays warm at around 25 °C. The sea averages 30.0 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 24 days, totalling 181 mm. On about 19 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a so-so month for a holiday in Surabaya.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 11 h 57 min05:31 – 17:28
- UV index
- 12 · extremeclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or moreAll months
- Wind
- 9 km/haverage daily peakAll months
- Cloud cover
- 75 %on averageAll months
- Hot days
- 19 days30 °C or moreAll months
- Time zone
- UTC+7Asia/Jakarta
How the score comes together
- Temperatureweight 50 %60 %
- Sunshineweight 20 %53 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in April
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Surabaya in April: quick answers
Is Surabaya hot in April?
Yes. In April, Surabaya is hot: daytime highs average 30 °C and nights stay around 25 °C. On about 19 days the thermometer climbs to 30 °C or more.
Can you swim in Surabaya in April?
Yes. In April the sea averages 30.0 °C – almost as warm as a bath.
Does it rain much in Surabaya in April?
It rains often – on about 24 days, adding up to 181 mm.
Surabaya month by month
The whole year in SurabayaAll destinations: IndonesiaWhere to go in AprilSea temperature in April
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences