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Contents
- The climate of Batam
- The best time to visit Batam
- The worst time to visit Batam
- Spring weather in Batam
- Summer weather in Batam
- Autumn weather in Batam
- Winter weather in Batam
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Batam
Batam, Indonesia falls under the Af category in the Köppen climate classification system, stipulating a tropical rainforest climate owing to its geographical position close to the equator. Throughout the year, the island city of Batam presents persistent high-temperature ranges, generally wavering between 25.7°C (78.3°F) in the cooler months to a peak of 31.2°C (88.2°F) during the hotter months.
Substantial rainfall is a predominant characteristic of the climate, with a monthly average from 58mm (2.28") in September to 220mm (8.66") in December. This precipitation is usually concentrated over 20 to 26 days each month, translating into frequent rain showers interspersed with sunshine. On an annual scale, relative humidity remains consistently high, fluctuating mildly from 72% to 79%.
There is transcendent sunlight throughout the year, with daily sunshine hours varying narrowly between 7.5 hours in December and January, and peaking at 10.7 hours in May. Additionally, monthly average daylight hours remain constant at approximately 12 hours. Wind speed varies reasonably over the year, attaining the maximum recorded speed of 14.9km/h (9.3mph) in January and dropping to its lowest average of 8.1km/h (5mph) in April.
Substantial rainfall is a predominant characteristic of the climate, with a monthly average from 58mm (2.28") in September to 220mm (8.66") in December. This precipitation is usually concentrated over 20 to 26 days each month, translating into frequent rain showers interspersed with sunshine. On an annual scale, relative humidity remains consistently high, fluctuating mildly from 72% to 79%.
There is transcendent sunlight throughout the year, with daily sunshine hours varying narrowly between 7.5 hours in December and January, and peaking at 10.7 hours in May. Additionally, monthly average daylight hours remain constant at approximately 12 hours. Wind speed varies reasonably over the year, attaining the maximum recorded speed of 14.9km/h (9.3mph) in January and dropping to its lowest average of 8.1km/h (5mph) in April.
The best time to visit Batam
Prospective visitors to Batam will find the most desirable weather conditions from June to September when the temperature holds steady between 26.5°C (79.7°F) to 31.2°C (88.2°F). This period also boasts of relatively lower rainfall, with September registering the least average precipitation of 58mm (2.28"). The humidity is at its lowest for the year at approximately 73%, providing a moderately less humid environment. Furthermore, sunshine hours peak at 10.7 hours in May and endurance of 10.2 hours in September, making it an excellent period for outdoor exploration.
The worst time to visit Batam
The period of November to January poses some challenges for visitors due to the surge in rainfall. December records the highest average rainfall, reaching up to 220mm (8.66"), which may disrupt sightseeing and other outdoor activities. Additionally, the temperature cools slightly to 26°C (78.8°F) in December and humidity steps up to 79%, making the environment slightly wetter and potentially less comfortable for visitors unaccustomed to such conditions.
Spring weather in Batam
Batam does not experience a typical spring as in temperate climates due to its position near the equator. However, in comparison to other months, March to May can be loosely compared as spring similar conditions. Temperatures gradually increase from 26.3°C (79.3°F) in March to 27.3°C (81.1°F) in May. This period also experiences progressively longer sunshine hours, with sunshine stretching from 8.5 hours in March to 10.7 hours in May, offering longer daylight hours for explorations and activities.
Summer weather in Batam
Similar to spring conditions, the summer months from June to August do not represent a drastic shift in Batam's climate. The temperatures slide slightly between 27°C (80.6°F) and 27°C (80.6°F), entering its warm phase. Rainfall averages subside to between 81mm (3.19") to 79mm (3.11"), making the outdoor atmosphere more agreeable for visitors. Sunshine hours shrink slightly from summer's peak in June at 9.8 hours to 8.7 hours in August.
Autumn weather in Batam
Again, due to its tropical classification, Batam does not undergo traditional autumn. However, during September to November, Batam experiences a slight decrease in temperature from 27°C (80.6°F) to 26.7°C (80.1°F) and a simultaneous increase in rainfall from 58mm (2.28") in September to 166mm (6.54") by November, hinting at the beginning of the wetter season. Sunshine hours remain relatively consistent, with September enjoying 10.2 hours and November witnessing a decrease to 7.7 hours.
Winter weather in Batam
In tropical Batam, winter months from December to February do not experience the chilly conditions typically associated with the season. The temperature reduces marginally over these months, reaching its lowest point at 25.7°C (78.3°F) in January and February. Unarguably, this marks the peak of the rainy season with average monthly precipitation escalating from 166mm (6.54") in November to 220mm (8.66") in December, before declining slightly to 137mm (5.39") in February. Correspondingly, the amount of sunshine enjoys a diminished duration of 7.5 hours in December and January.
Weather in January
Kicking off the year, January in Batam, Indonesia sees a blend of warm temperatures and high humidity. It bears a similarity to December, retaining its temperate conditions. With 79% relative humidity, signs of heavy rainfall of 137mm (5.39") are prominent. Weather in January »
Weather in February
The weather pattern in February in Batam tends to show some relief from the heavy rainfall seen in January. A marked decrease in rainfall volume clears the way for increased sunshine hours, brightening up the city. Batam's climate exhibits its main features with modest changes, an example being a decrease in rainfall to 73mm (2.87") in February, compared to 137mm (5.39") in the prior month. Weather in February »
Weather in March
The island of Batam welcomes March with steady warm temperatures and slightly increased rainfall. This weather trend aligns with the usual transition from dry to wet season in Indonesia's tropical climate. Rainfall levels go up to 88mm (3.46"), signalling a return to wetter conditions after February's relative dry spell. Weather in March »
Weather in April
In April, Batam, Indonesia continues its weather trajectory with lingering warm temperatures. The city experiences a noticeable boost in both rainfall and humidity from March. Rainfall escalates, reaching 110mm (4.33"), establishing April as the onset of a markedly wet period in comparison to preceding months. Weather in April »
Weather in May
May in Batam sees the weather lingering around similar parameters as in April. High humidity continues to be a constant, accompanied by considerable rainfall and warm temperatures. May sees a slight escalation in rainfall, with volumes rising to 115mm (4.53"), lending a distinctly tropical appeal to the city. Weather in May »
Weather in June
June brings subtle changes to Batam's weather forecast, offering a slight respite from May's relatively high rainfall. This month is known for consistent tropical temperatures and slight variations in humidity levels. Rainfall tapers to 107mm (4.21"), bringing about a relative dry spell in an otherwise moist climatic schedule. Weather in June »
Weather in July
In July, Batam's weather trends showcase a continuity in the slight drop in rainfall initiated in June. Humidity and temperature remain fairly stable, displaying the consistent climatic conditions typical of the region. With the rainfall reducing to 81mm (3.19"), July marks a shift from the higher precipitations of previous months. Weather in July »
Weather in August
August in Batam is known for its characteristic return to increased rainfall after July's relative respite. Steady temperatures and consistent humidity levels define the city's weather pattern with little variation from previous months. Weather in August »
Weather in September
The weather in September in Batam navigates a significant turn, bringing about the driest conditions of the entire year. With mild temperature fluctuation and unchanged humidity, Batam continues to maintain its warm, tropical climate. Weather in September »
Weather in October
October in Batam, Indonesia illustrates a return to higher precipitation rates after a notably dry September. Persistent warm temperatures and consistent humidity levels continue to mark the city's unvarying tropical weather. This rise in rainfall, from 58mm (2.28") in September to 108mm (4.25") in October, establishes a fairly wet ambiance. Weather in October »
Weather in November
November in Batam stands out as the wettest month of the year, seeing a marked surge in precipitation levels. Simultaneously, the temperature range and humidity remain relatively unswerving, underscoring the consistency of the tropical climate. Weather in November »
Weather in December
December weather in Batam, Indonesia showcases the city's tropical climate featuring high humidity, warm temperatures, and considerable rainfall. It continues the pattern observed in November, carrying forward high volumes of precipitation. Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Batam?
January, with its average high-temperature of 29.3°C (84.7°F) and an average low-temperature of 25.7°C (78.3°F), holds the record as the coldest month in Batam.
What is the most humid month in Batam?
The months with the highest humidity are January and December, with an average relative humidity of 79%.
How many days does it rain in Batam?
Throughout the year, in Batam, there are 267.5 rainfall days, and 1342mm (52.83") of precipitation is accumulated.
What is the month with the least sunshine in Batam?
The months with the least sunshine in Batam, Indonesia, are January and December, with an average of 7.5h of sunshine.
What is the month with the highest UV index in Batam?
The months with the highest UV index are January through December, with an average maximum UV index of 7.
What are the months with the lowest UV index in Batam?
The months with the lowest UV index are January through December, with an average maximum UV index of 7.
What is the warmest month in Batam?
In Batam, May is the warmest month, with temperatures averaging a high of 31.2°C (88.2°F) and a low of 27.3°C (81.1°F).
What month has the most sunshine in Batam?
May has the most sunshine of the year, with an average of 10.7h of sunshine.
When are the longest days in Batam?
The month with the longest days is June, with an average of 12h and 12min of daylight.
What is the driest month in Batam?
September is the month with the least rainfall in Batam, Indonesia. Rain falls for 20 days and accumulates 58mm (2.28") of precipitation.
What is the least humid month in Batam?
The least humid month is October, with an average relative humidity of 72%.
What is the wettest month in Batam?
December is the month with the most rainfall in Batam, Indonesia. Rain falls for 26.4 days and accumulates 220mm (8.66") of precipitation.
What is the month with the shortest days in Batam?
With an average of 12h and 6min of daylight, December has the shortest days of the year in Batam.
Is there Daylight Saving Time (DST) in Batam?
Batam, Indonesia, does not observe Daylight Saving Time (DST). WIB timezone is used throughout the entire year.
Average temperature
Batam, Indonesia
The warmest month (with the highest average high temperature) is May (31.2°C).
The month with the lowest average high temperature is January (29.3°C).
The month with the highest average low temperature is May (27.3°C).
The coldest months (with the lowest average low temperature) are January and February (25.7°C).
Average pressure
Batam, Indonesia
- Average pressure in January:
1010mbar - Average pressure in February:
1010.2mbar - Average pressure in March:
1009.8mbar - Average pressure in April:
1009.1mbar - Average pressure in May:
1008.6mbar - Average pressure in June:
1008.7mbar
- Average pressure in July:
1008.9mbar - Average pressure in August:
1009.2mbar - Average pressure in September:
1009.6mbar - Average pressure in October:
1009.4mbar - Average pressure in November:
1008.7mbar - Average pressure in December:
1009.2mbar
The month with the highest atmospheric pressure is February (1010.2mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).
Average wind speed
Batam, Indonesia
- Average wind speed in January:
14.9km/h - Average wind speed in February:
14.5km/h - Average wind speed in March:
11.1km/h - Average wind speed in April:
8.1km/h - Average wind speed in May:
8km/h - Average wind speed in June:
10.2km/h
- Average wind speed in July:
11.6km/h - Average wind speed in August:
12.2km/h - Average wind speed in September:
10.6km/h - Average wind speed in October:
8.7km/h - Average wind speed in November:
8.5km/h - Average wind speed in December:
12.5km/h
The windiest month (with the highest average wind speed) is January (14.9km/h).
The calmest month (with the lowest average wind speed) is May (8km/h).
Average humidity
Batam, Indonesia
The months with the highest relative humidity are January and December (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Batam, Indonesia
- Average rainfall in January:
137mm - Average rainfall in February:
73mm - Average rainfall in March:
88mm - Average rainfall in April:
110mm - Average rainfall in May:
115mm - Average rainfall in June:
107mm
The wettest month (with the highest rainfall) is December (220mm).
The driest month (with the least rainfall) is September (58mm).
Average rainfall days
Batam, Indonesia
- Average rainfall days in January:
20.3 days - Average rainfall days in February:
16.3 days - Average rainfall days in March:
20.5 days - Average rainfall days in April:
24.3 days - Average rainfall days in May:
23.6 days - Average rainfall days in June:
21.7 days
- Average rainfall days in July:
22.8 days - Average rainfall days in August:
23.4 days - Average rainfall days in September:
20 days - Average rainfall days in October:
23.1 days - Average rainfall days in November:
25.1 days - Average rainfall days in December:
26.4 days
The month with the highest number of rainy days is December (26.4 days).
The month with the least rainy days is February (16.3 days).
Average daylight / Average sunshine
Batam, Indonesia
- Average daylight in January:
12h and 1min - Average daylight in February:
12h and 1min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 1min - Average daylight in May:
12h and 1min - Average daylight in June:
12h and 1min
- Average daylight in July:
12h and 1min - Average daylight in August:
12h and 1min - Average daylight in September:
12h and 1min - Average daylight in October:
12h and 1min - Average daylight in November:
12h and 1min - Average daylight in December:
12h and 1min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 6min).
- Average sunshine in January:
7h and 3min - Average sunshine in February:
8h and 1min - Average sunshine in March:
8h and 3min - Average sunshine in April:
9h and 4min - Average sunshine in May:
10h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
8h and 4min - Average sunshine in August:
8h and 4min - Average sunshine in September:
10h and 1min - Average sunshine in October:
8h and 4min - Average sunshine in November:
7h and 4min - Average sunshine in December:
7h and 3min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 7h and 30min).
Average sunshine days
Batam, Indonesia
- Average sunshine days in January:
9.5 days - Average sunshine days in February:
9.7 days - Average sunshine days in March:
8.6 days - Average sunshine days in April:
5 days - Average sunshine days in May:
6 days - Average sunshine days in June:
5.9 days
- Average sunshine days in July:
6.3 days - Average sunshine days in August:
5.4 days - Average sunshine days in September:
8.5 days - Average sunshine days in October:
6.2 days - Average sunshine days in November:
4.1 days - Average sunshine days in December:
4.3 days
The month with the most sunshine days is February (9.7 days).
The month with the least sunshine days is November (4.1 days).
Average UV index
Batam, Indonesia
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover
Batam, Indonesia
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility
Batam, Indonesia
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Batam, Indonesia
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