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.
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 »