Surabaja weather in January 2026

Expect daytime maximum temperatures of 31°C in Surabaja in January and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 17 days with some rainfall and typically 281 mm of rainfall in the month.

  • 31°C maximum daytime temperature in January in Surabaja31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 17 days with some rainfall in January in Surabaja17
    17 days with some rainfall
  • 25°C minimum night-time temperature in January in Surabaja25
    25°C min night temperature
  • 12 hours of daylight per day in January in Surabaja12
    12 hours of daylight per day
  • Very high heat & humidity in January in SurabajaVH
    Very High heat & humidity
  • 281 mm monthly rainfall in January in Surabaja281
    281 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Surabaja11
    11+ (Extreme) UV index
  • 29°C sea temperature in January in Surabaja29
    29°C sea temperature

More about Surabaja

Surabaja by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Indonesia

TUI discount code: up to £300 off 2025/2026 holidays

  • Save up to £300 on package holidays in 2025/2026
  • Book in TUI sale. Discount varies by spend. T&Cs apply
  • Travel between 1st May 2025 & 31st Oct 2026 (inclusive)
Show discount codeShow discount code ******ALE
Redeem TUI discount code >>

Expires at 10:00 on Friday 28th Feb 2025 · View all TUI offers

TUITUI deal finder

The January weather guide for Indonesia (Surabaja) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about Indonesia

How hot is it in Surabaja in January?

Daytime temperatures usually reach 31°C in Surabaja in January with very high heat and humidity, falling to 25°C at night.

How sunny is it in Surabaja in January?

There are normally 7 hours of bright sunshine each day in Surabaja in January - that's 56% of daylight hours.

How warm is the sea around Surabaja in January?

The average sea temperature around Surabaja in January is 29°C.

Does it rain in Surabaja in January?

There are usually 17 days with some rain in Surabaja in January and the average monthly rainfall is 281mm.

Surabaja January sunrise & sunset times

Browse the sunrise and sunset times for Surabaja in January 2026. Select a month to view Surabaja sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 05:16 17:49
Friday, 16th January 2026 05:24 17:54
Saturday, 31st January 2026 05:30 17:55

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^