Weather in Surabaya in January 2026
Average weather
Average temperature in Surabaya in January
The temperature in January is +90°F on average, with a range between a maximum of +91°F during the day and a minimum of +75°F at night.
The average maximum temperature goes up 22% by the end of the month, compared with the beginning of the month, from +86°F to +90°F.
Is Surabaya warm or cold in January?
Surabaya is typically hot in January.
Maximum temperatures go up compared to the previous month from +88°F to +88°F. The minimum temperature also goes up from +77°F to +77°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
January is one of the coolest months in Surabaya, here is the comparison with other months:
Climate in Surabaya in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +88°F | +88°F | +86°F | ||||
| Min. temperature | ||||||
| +73°F | +73°F | +72°F | ||||
| Max. temperature | ||||||
| +97°F | +95°F | +93°F | ||||
| Rainfall | ||||||
| 248 mm | 261 mm | 241 mm | ||||
| Wind | ||||||
| 1 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 80% | 83% | 83% | ||||
| Air pressure | ||||||
| 1008 HPa | 1008 HPa | 1008 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 0 | 0 | 0 | ||||
| Rainy days | ||||||
| 24 | 25 | 23 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
January weather is still as ok as in December. The temperature levels stay the same in the area of +88°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 248 mm to 261 mm. Humidity rises from 80% to 83%. Winds are stronger in comparison to December, going up from 1 m/s to 2 m/s on average. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
February brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Surabaya is gradually decreasing during January, going from 5 m/s to 3 m/s over the course of the month.
Rain
How was the weather last January in Surabaya?
Climate Change Over the Years
The climate in Surabaya in January has not changed that much over the last 43 years.
The average temperature was the lowest in 1984 (+87°F) and the highest in 2009 (+91°F). The driest year was 1997 with only 1067 mm of rainfall, and the wettest year was 2010 with 2524 mm.
FAQ
Is January a good time to visit Surabaya?
Can you sunbathe in Surabaya in January?
Is Surabaya rainy in January?
Is it sunny in Surabaya in January?
Other cities in Indonesia
Monthly weather in Surabaya
Source of the data
For this page, we’ve looked at the typical weather in Surabaya, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
