Measurements:
°C
°F
CURRENT WEATHER
23:17
Surabaya
84°F
W 10 mph
Feels like: 90°F
Precip: 19%
World Resorts Indonesia Surabaya Weather

7 Day Weather Forecast

09.11
fri
DAY
94°F
W 9 mph
precip
2%
NIGHT
84°F
W 10 mph
precip
19%
09.12
sat
DAY
94°F
NW 15 mph
precip
2%
NIGHT
82°F
W 6 mph
precip
20%
09.13
sun
DAY
94°F
W 11 mph
precip
10%
NIGHT
82°F
W 4 mph
precip
18%
09.14
mon
DAY
94°F
W 9 mph
precip
1%
NIGHT
84°F
NW 8 mph
precip
10%
09.15
tue
DAY
94°F
NW 11 mph
precip
10%
NIGHT
82°F
N 3 mph
precip
13%
09.16
wed
DAY
96°F
W 9 mph
precip
1%
NIGHT
82°F
NW 6 mph
precip
18%
09.17
thu
DAY
96°F
W 6 mph
precip
7%
NIGHT
84°F
NW 7 mph
precip
13%

Surabaya Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Surabaya was 29.3°F. The maximum and minimum values were 28.6°F and 30.4°F respectively.

Surabaya on the Weather Map

Best Time to Visit Surabaya
The most sunny months:
September 26 days
August 25 days
July 24 days
The most warm months:
October 98.7 °F
September 97.7 °F
November 97.0 °F
Warmest sea temperature:
November 90.7 °F
April 90.2 °F
December 89.9 °F
The most cold months:
February 92.1 °F
January 92.3 °F
March 93.7 °F
The most rainy months:
January 17 days
February 16 days
March 16 days
The most windy months:
January 7 mph
September 6 mph
August 6 mph
more details