Surabaya weather in July
In July, Surabaya has an average high of 31 °C88 °F and an average low of 24 °C76 °F, with about 35 mm1.4 in of precipitation. It is the 9th warmest month of the year and ranks 10th for precipitation.
How July compares with other months
Compared with June, July is about the same temperature and drier by 39 mm1.5 in. Compared with August, July is 0.6 °C1.1 °F cooler on average and wetter by 24 mm1.0 in. Daylight lasts about 11.7 hours around the middle of the month. Average relative humidity is 72% and the average cloud amount 45%.
Is July a good time to visit Surabaya?
Yes — July is one of the most comfortable months to visit Surabaya by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in July
For Surabaya in July, pack very light, breathable clothing, a sun hat and plenty of water.
July in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Surabaya | 3188 | 2476 | 351.4 |
| Mojokerto | 3290 | 2272 | 341.4 |
| Pasuruan | 3087 | 2476 | 331.3 |
| Probolinggo | 3086 | 2272 | 361.4 |
| Malang | 2882 | 1966 | 361.4 |
| Kediri | 2984 | 2170 | 401.6 |
| Lumajang | 3086 | 2271 | 361.4 |
| Blitar | 2883 | 2169 | 401.6 |
| Madiun | 3188 | 2169 | 431.7 |
Nearby places that are more than 1 °C1.8 °F cooler: Probolinggo, Malang, Kediri and Lumajang.
Other months in Surabaya
- January29 °C84 °F / 26 °C78 °F
- February29 °C83 °F / 25 °C78 °F
- March29 °C84 °F / 26 °C78 °F
- April30 °C85 °F / 26 °C79 °F
- May30 °C86 °F / 26 °C79 °F
- June30 °C87 °F / 25 °C77 °F
- July31 °C88 °F / 24 °C76 °F
- August32 °C90 °F / 24 °C76 °F
- September33 °C92 °F / 25 °C78 °F
- October33 °C92 °F / 26 °C80 °F
- November32 °C89 °F / 27 °C80 °F
- December30 °C85 °F / 26 °C79 °F
Frequently asked questions
How warm is Surabaya in July?
In July the average high in Surabaya is 31 °C (88 °F) and the average low is 24 °C (76 °F).
Does it rain a lot in Surabaya in July?
On average about 35 mm (1.4 in) of precipitation falls in July; it ranks 10th of the 12 months.
Is July the warmest month in Surabaya?
No. The warmest month in Surabaya is September, with an average high of 33 °C (92 °F). The coldest month is July, with an average low of 24 °C (76 °F).
How long is the day in Surabaya in July?
In the middle of July the day in Surabaya lasts about 11.7 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Surabaya in July?
The average relative humidity in July is about 72%. Combined with warm days, it can feel muggy.
How cloudy is Surabaya in July?
On average about 45% of the sky is covered by cloud in July. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.