The best times to visit Surabaya for ideal weather are

June 11th to October 14th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.


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Other Surabaya Travel Info

Weather in Surabaya

Temperature

Average temperatures in Surabaya vary barely at all. Considering humidity, temperatures feel hot all year with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 16th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Surabaya, the hottest months are October, November, and then May. See average monthly temperatures below. The warmest time of year is generally mid October where highs are regularly around 95.5°F (35.3°C) with temperatures rarely dropping below 78°F (25.6°C) at night.

Surabaya Temperatures (Fahrenheit)

Key
High
Average
Low

Surabaya Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Surabaya Perceived Temperature (F)

Key
High
Average
Low

Surabaya Perceived Temperature (C)

Key
High
Average
Low

 

Average Surabaya Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
Jan90.382.276.3
Feb90.482.176.3
Mar91.18376.6
Apr91.983.877.4
May91.784.277.3
Jun91.483.576.2
Jul90.882.674.4
Aug91.582.974.1
Sep93.483.974.8
Oct95.185.877.6
Nov93.985.178
Dec91.382.976.8

Show Celsius

MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
Jan32.427.924.6
Feb32.427.824.6
Mar32.828.324.8
Apr33.328.825.2
May33.22925.2
Jun3328.624.6
Jul32.728.123.6
Aug33.128.323.4
Sep34.128.823.8
Oct35.129.925.3
Nov34.429.525.6
Dec32.928.324.9


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Surabaya are August, July, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid June. For example, on the week of June 18th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late January and early February with an average of 5 days of significant precipitation the week of January 29th.

When can you find snow in Surabaya? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Surabaya.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Surabaya (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
Jan48%011.3
Feb46%09.3
Mar38%010.3
Apr23%04.8
May16%02.4
Jun6%01.6
Jul2%00.4
Aug2%00.1
Sep3%00.4
Oct7%01.6
Nov18%03.2
Dec41%010.9

Show Centimeters

MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
Jan48028.7
Feb46023.6
Mar38026.2
Apr23012.2
May1606.1
Jun604.1
Jul201
Aug200.3
Sep301
Oct704.1
Nov1808.1
Dec41027.7

 

Humidity and Wind

Surabaya has some very humid months, with other comfortably humid months. The least humid month is September (56.2% relative humidity), and the most humid month is February (75.5%).

Wind in Surabaya is usually calm. The windiest month is August, followed by January and September. August’s average wind speed of around 6 knots (6.9 MPH or 11.2 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early August where average top sustained speeds reach 12.7 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Surabaya.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
Jan5.7Light breeze11.8Significant breeze
Feb5.4Light breeze11.7Significant breeze
Mar4.3Light breeze10.2Significant breeze
Apr3.8Barely noticeable9.2Gentle breeze
May4.4Light breeze10.1Significant breeze
Jun4.7Light breeze10.2Gentle breeze
Jul5.5Light breeze11.5Significant breeze
Aug6Light breeze12.2Significant breeze
Sep5.7Light breeze12.1Significant breeze
Oct5.7Light breeze11.6Significant breeze
Nov3.9Barely noticeable9.1Significant breeze
Dec3.7Barely noticeable9.2Gentle breeze

Show Relative Humidity by Month

MonthAvg. Relative Humidity
Jan74.6%
Feb75.5%
Mar74.2%
Apr73%
May69.7%
Jun66.8%
Jul62.2%
Aug58.6%
Sep56.2%
Oct57.6%
Nov66.2%
Dec73.4%

 

Is it Safe to Travel to Surabaya?

Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Oct 07, 2019 there are travel warnings and regional advisories for Indonesia; exercise a high degree of caution and avoid some areas. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 20, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Surabaya, Indonesia is August, followed by October and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Surabaya in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is very reliable. Displayed data is calculated relative to the peak, so a score of 33.7 in December means 33.7% of the tourists vs. August.


Overall Surabaya Travel Experience by Season

Fall (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 92.3°F (33.5°C) and 90.5°F (32.5°C) with similar temperatures in the later months. Rain is somewhat common with 5 to 12 days of significant precipitation per month. Fall is fairly slow for tourism, which makes it a good time for those looking for deals.

Winter (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the least precipitation with 1 to 2 days of precipitation per month. June – August is the busiest season for tourism in Surabaya, so lodging and other accommodations may cost more than usual.

Spring (September through November)

Spring daily highs range from 95.5°F (35.3°C) and 92.8°F (33.8°C), which will feel warmer than comfortable given the humidity and wind. It rains or snows a normal amount: 1 to 5 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.

Summer (December through February)

Weather is perfect this time of year in Surabaya to be enjoyable for warm weather travelers. The average high during this season is between 91.9°F (33.3°C) and 89.5°F (31.9°C). On average, it rains or snows a very great amount: 13 to 15 times per month. These times of year are the slowest with tourists.

 

Best Times to TravelIndonesia › Surabaya, Indonesia


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