Surabaya weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Fair
Best time to visit: June – September
What is the weather like in Surabaya in October?
In October, Surabaya is hot: daytime highs average 33 °C, and even at night it stays warm at around 25 °C. The sea averages 29.4 °C – almost as warm as a bath. The sun shines for around 8 hours a day. Rain is frequent, with about 13 rainy days and 87 mm in total. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Surabaya.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 62 | 40 | 34 |
| Day | 33° | 33° | 31° |
| Night | 25° | 25° | 26° |
| Sea | 29° | 29° | 30° |
| Sun | 9 h | 8 h | 6 h |
| Rain days | 4 | 13 | 25 |
More details for October
- Daylight
- 12 h 15 min05:07 – 17:22
- UV index
- 14 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 62 %on averageAll months
- Hot days
- 29 days30 °C or moreAll months
- Time zone
- UTC+7Asia/Jakarta
How the score comes together
- Temperatureweight 50 %28 %
- Sunshineweight 20 %82 %
- Few rainy daysweight 30 %33 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Surabaya in October: quick answers
Is Surabaya hot in October?
Yes. In October, Surabaya is hot: daytime highs average 33 °C and nights stay around 25 °C. On about 29 days the thermometer climbs to 30 °C or more.
Can you swim in Surabaya in October?
Yes. In October the sea averages 29.4 °C – almost as warm as a bath.
Does it rain much in Surabaya in October?
Rain is frequent, with about 13 rainy days and 87 mm in total.
Surabaya month by month
The whole year in SurabayaAll destinations: IndonesiaWhere to go in OctoberSea temperature in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences