Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
January verdict
Surabaya, East Java, Indonesia in January
Weather score53Mixed
Mixed for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 6.9h per day, enough for a balanced month. Rainfall averages 281mm, so showers are a real planning factor.
January weather
Monthly averages
Temp
31°C
Rain
281mm
Sun
6.9h
Sea
29°C
Weather score
53
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 281mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.9h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Surabaya, East Java, Indonesia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
January31°C average high
January is close to Surabaya's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
January281mm average rain
January is one of Surabaya's wettest months, so rain is likely to be a major planning factor.
Driest monthsJune to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
January6.9 hours average sun
January is one of Surabaya's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJuly to October
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
January29°C average sea
January sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJanuary to June and October to December
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
January53 weather score
January is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJune to October
These months have the strongest weather score in the monthly averages.
Hotels in Surabaya, East Java, Indonesia
Marriott
JW Marriott Hotel SurabayaSurabaya, Indonesia
The Westin SurabayaSurabaya, East Java, Indonesia
Sheraton Surabaya Hotel & TowersSurabaya, East Java, Indonesia
New:Surabaya, East Java, Indonesia
Fairfield by Marriott SurabayaSurabaya, Indonesia
Four Points by Sheraton Surabaya, Pakuwon IndahSurabaya, East Java, Indonesia