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Batam weather in December

Weather in Batam: December

Average day temperature: 86.4°F
Average night temperature: 79.9°F
Sea water temperature: 83.9°F
Number of sunny days: 3 days
Day length: 12.0 - 12.1 hours
Number of rainy days: 16 days
Precipitation totals: 10.2 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 87°F. At the same time the lowest night temperature was 75°F. Daily and nightly averages during December were 83.4°F and 78.1°F.

Sea water temperature in Batam in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 83.9°F. The highest and lowest sea temperatures during the month were 85.6°F and 82.6°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Batam in December is 8.8 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 8.9 mph It makes December one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 4.3.

Best time for vacation in Batam

Sunniest months:
September 12 days
May 11 days
July 11 days
Warmest months:
May 89.9 °F
April 89.8 °F
June 88.6 °F
Warmest sea temp:
May 86.5 °F
June 86.3 °F
April 85.5 °F
Coldest months:
January 85.6 °F
February 86.3 °F
December 86.4 °F
Rainiest months:
December 16 days
November 15 days
January 13 days
Windiest months:
January 10.8 mph
February 10.7 mph
August 9.4 mph

Batam on a weather map

Batam
+77°F
S 9 mph
Feels like: +82°F
Precip.: 0%
Places in Indonesia:
Name
°F
+77°F
+79°F
+81°F
+84°F
+82°F
+75°F
+82°F
+82°F
+79°F
+75°F
+82°F
+79°F
+77°F
+81°F
+82°F
24 Hours Forecast
Batam
Local time: 20:34
December 28, sunday
2100
77°F
S
9 mph
December 29, monday
0000
77°F
S
7 mph
0300
77°F
S
8 mph
0600
77°F
S
8 mph
0900
81°F
S
12 mph
1200
84°F
S
12 mph
1500
82°F
S
11 mph
1800
81°F
S
12 mph
Units of measurement: °C / °F