Best time to visit Surabaya: month-by-month weather (2026)
The highest-scoring months in Surabaya are Jun, Jul, Aug and Sep.
Best months
Jun, Jul, Aug and Sep
Peak season
Jun, Jul, Aug and Sep
Off season
Jan, Feb and Oct
Monthly Temperatures (°C)
Monthly Rainfall (mm)
Month-by-Month Guide
Temperature, rainfall and sunshine are measured. The visit score below is derived from those three (design spec §5.3)estimate.
Jan
Temp: 24.5°C – 30.7°C
Rain: 324mm
Sunshine: 8.7h/day
Visit score: 5.8/10
Feb
Temp: 24.6°C – 30.5°C
Rain: 343mm
Sunshine: 9h/day
Visit score: 5.8/10
Mar
Temp: 24.7°C – 30.8°C
Rain: 259mm
Sunshine: 9.2h/day
Visit score: 5.8/10
Apr
Temp: 25.2°C – 30.8°C
Rain: 197mm
Sunshine: 9.5h/day
Visit score: 5.8/10
May
Temp: 25.2°C – 30.9°C
Rain: 119mm
Sunshine: 10.2h/day
Visit score: 6.7/10
Jun
BestTemp: 24.9°C – 31.3°C
Rain: 37mm
Sunshine: 10.7h/day
Visit score: 8.5/10
Jul
BestTemp: 23.5°C – 31.3°C
Rain: 16mm
Sunshine: 10.8h/day
Visit score: 8.5/10
Aug
BestTemp: 23.5°C – 31.5°C
Rain: 13mm
Sunshine: 11h/day
Visit score: 8.5/10
Sep
BestTemp: 24.4°C – 32.6°C
Rain: 12mm
Sunshine: 11.2h/day
Visit score: 8.5/10
Oct
Temp: 25.2°C – 33.6°C
Rain: 48mm
Sunshine: 11.4h/day
Visit score: 5.6/10
Nov
Temp: 25.2°C – 32.5°C
Rain: 241mm
Sunshine: 10.2h/day
Visit score: 5.8/10
Dec
Temp: 25°C – 31.8°C
Rain: 287mm
Sunshine: 9.3h/day
Visit score: 5.8/10
When to go, and when not to
June, July, August, and September stand out as the best months to visit Surabaya, based on the highest visit scores of the year. During this stretch, rainfall drops sharply, from lows of around 12 to 37mm per month, while sunshine climbs to between about 10.7 and 11.2 hours per day, giving the driest and brightest conditions for exploring the city.
This dry stretch is also the peak season, so it draws the most visitors even though the underlying cost tiers stay the same year-round. The trade-off comes at the wetter end of the calendar, with January, February, November, and December all seeing over 240mm of rain per month, and October standing out as the hottest month with highs reaching 33.6C alongside a lower visit score.
Season Guide
Spring
September – November
Warming temperatures as the southern hemisphere heads into spring.
Packing tips
- · Light layers
- · Rain jacket
- · Comfortable walking shoes
Summer
December – February
Warmest months with long days. Peak holiday season.
Packing tips
- · Sunscreen
- · Hat
- · Light clothing
- · Refillable water bottle
Autumn
March – May
Cooling temperatures and shoulder season. Fewer crowds and better prices.
Packing tips
- · Medium layers
- · Sweater
- · Waterproof jacket
Winter
June – August
Coolest months. Some destinations offer unique winter experiences.
Packing tips
- · Warm coat
- · Scarf and gloves
- · Thermal layers
Keep reading
Sources
- GeoNames city database — CC BY 4.0, fetched September 14, 2026
- Open-Meteo climate archive — CC BY 4.0, fetched September 21, 2026
AI-written interpretation reviewed against the data above — claude-sonnet-5, generated September 21, 2026. Every number on this page comes from a dataset named here; the formulas are public.