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April Weather in Surabaya, Indonesia

Last updated: August 23, 2025

In April, the average temperature in Surabaya, Indonesia reaches a pleasant 28°C (82°F). You can expect a range from a comfortable 24°C (75°F) to a warm 35°C (95°F). However, be prepared for some rain, as precipitation averages 318 mm (12.5 in) over 28 days, accompanied by a high average humidity of 82%. Stay cool and enjoy the tropical vibe! 🌦️

April Temperature in Surabaya

In April in Surabaya, the average temperature is 28°C (82°F). The maximum can reach 35°C (95°F), while the minimum can dip to as low as 24°C (75°F). This pleasant climate makes it an ideal destination for travelers seeking warm weather and outdoor activities.

April Weather in Surabaya: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Surabaya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Surabaya, April typically has an average temperature of 28°C (82°F), with highs reaching up to 35°C (95°F) and lows dropping to around 24°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec818181828281808081828281
Data source: Temperature data for Surabaya generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Surabaya

In Surabaya in April, the precipitation amount is 318 mm (12.5 in) accumulated over a period of 28 days.

April Precipitation Trends in Surabaya

The chart displays monthly precipitation patterns in Surabaya, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Surabaya, April typically receives around 318 mm (12.5 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec2573254183182421981077797118250340
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Surabaya

In Surabaya in April humidity is 82%. With an average temperature of 28°C (82°F), this humidity feels like walking through a warm, dense blanket, making outdoor activities a challenge and necessitating frequent breaks to stay hydrated.

April Average Humidity in Surabaya

This chart illustrates the average monthly humidity levels in Surabaya, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Surabaya is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%84%82%80%80%80%78%74%76%78%80%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Surabaya

In Surabaya in April, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Surabaya.

Maximum UV Index Levels in Surabaya for April

The chart shows the monthly maximum UV Index (UVI) for Surabaya in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Surabaya typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151516151311121314151514
Data source: Surabaya April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Surabaya Compares to Other Months

Weather in Surabaya varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Surabaya, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Surabaya, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)257 mm (10.1 inches)85%extreme
February Weather27°C (81°F)325 mm (12.8 inches)86%extreme
March Weather27°C (81°F)418 mm (16.4 inches)84%extreme
April Weather28°C (82°F)318 mm (12.5 inches)82%extreme
May Weather28°C (82°F)242 mm (9.5 inches)80%extreme
June Weather27°C (81°F)198 mm (7.8 inches)80%extreme
July Weather27°C (80°F)107 mm (4.2 inches)80%extreme
August Weather27°C (80°F)77 mm (3.0 inches)78%extreme
September Weather27°C (81°F)97 mm (3.8 inches)74%extreme
October Weather28°C (82°F)118 mm (4.6 inches)76%extreme
November Weather28°C (82°F)250 mm (9.8 inches)78%extreme
December Weather27°C (81°F)340 mm (13.4 inches)80%extreme

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