Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
Surabaya, East Java, Indonesia Average Monthly Weather
Weather score71Very good annual avg
Best months: August, July, September
Across the year, average daytime temperatures are around 32°C, sunshine averages 8.9h per day, and rainfall totals about 1596mm. Sea temperatures average 29°C across the year.
Annual weather
Annual averages
Temp
32°C
Rain
1596mm
Annual total
Sun
8.9h
Sea
29°C
Weather score
71
Very good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 22mm, which is relatively low for holiday planning.
Bright
Sunshine averages 10h per day, so bright days are a strong part of the month.
Warm sea
Sea temperatures average 28°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
July31°C average high
July 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
July22mm average rain
July is one of Surabaya's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJune to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July10 hours average sun
July is brighter than Surabaya's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJuly to October
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July28°C average sea
July is below Surabaya's yearly sea-temperature average, so swimming can feel fresher.
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
July86 weather score
July is one of Surabaya's best weather-score months, combining the strongest overall balance in the yearly averages.
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