Last updated: January 18, 2025
Aceh, Indonesia, exhibits a tropical rainforest climate, classified under the Köppen-Geiger system as Af. This distinctive climate is characterized by high humidity and consistent temperatures throughout the year. The region experiences a minimum temperature of 10°C (51°F) in February, while average temperatures hover around 25°C (77°F). The warmest month, June, can see maximum temperatures soaring to 37°C (100°F), fostering a vibrant ecosystem and influencing local weather patterns. Aceh's climate plays a vital role in shaping its rich biodiversity and agricultural practices.
In Aceh, Indonesia, temperature patterns reveal a consistent tropical climate with subtle seasonal fluctuations. January marks the year's onset with minimum temperatures around 11°C (52°F), gradually dropping to 10°C (51°F) in February before stabilizing around 12-13°C (54-56°F) from July through October. Average temperatures throughout the year remain relatively constant at 25-26°C (77-78°F), creating a warm environment conducive to lush biodiversity. The maximum temperatures peak predominantly during the transition from March to June, reaching highs of 37°C (98-100°F), marking the hottest months, while cooler months from November to February experience maximums ranging between 33°C (91°F) and 35°C (95°F), underscoring a mild drop as the year concludes. This consistent warmth and seasonal intensity shape the region's vibrant ecosystems and agricultural viability.
Sabang experiences a tropical climate with minimum temperatures reaching 24°C (76°F) in December and maximum temperatures peaking at 30°C (87°F) in June. These warm conditions make it a desirable destination for visitors throughout the year. For more detailed climate information, you can check the monthly temperatures in Sabang here.
Aceh, Indonesia, experiences a pronounced wet season characterized by significant monthly precipitation, peaking in the late year. January begins with 218 mm (8.6 in) of rain over 19 days, which sets the stage for a gradual increase in rainfall, with March experiencing 228 mm (9.0 in). However, the real deluge arrives in May, with 311 mm (12.3 in), leading to one of the wettest months. The rainfall continues to climb, culminating in October with an impressive 381 mm (15.0 in), as the region frequently experiences heavy showers.
The November rainfall further intensifies, reaching a staggering 474 mm (18.7 in) over 28 days, making it the wettest month. This deluge gradually diminishes into December, when 391 mm (15.4 in) still indicates a significant amount of rainfall, sustaining the region’s moisture and supporting lush vegetation. The rainy patterns in Aceh exhibit a typical tropical monsoon climate, showcasing the region's rich biodiversity while also influencing agricultural cycles and local water resources.
In Aceh, Indonesia, sunshine duration exhibits a clear seasonal trend, beginning the year with relatively fewer hours of sunlight. January sees about 234 hours of sunshine, but this gradually increases, peaking in March with an impressive 309 hours. Subsequently, the months of April and May maintain a robust sunshine presence, with 281 and 272 hours, respectively. This steady rise in sunshine hours indicates the transition into a brighter and drier spell as the region moves toward the middle of the year.
As the dry season continues, the summer months, notably June and July, showcase substantial sunlight with 296 and 307 hours, respectively—making July the sunniest month of the year. However, as the year progresses into the latter months, sunshine hours begin to decline, with November dropping to 232 hours and slightly recovering in December with 268 hours. This annual fluctuation reflects the typical tropical climate dynamics in Aceh, where the variation in sunlight directly influences both ecological patterns and local agricultural practices.
In Aceh, Indonesia, the UV Index remains predominantly high throughout the year, categorizing exposure as extreme. The month of March experiences the highest level at 17, closely followed by April. This consistent severity suggests that residents and visitors alike must exercise caution during outdoor activities, as the recommended burn time is merely 10 minutes across all months. Even in mid-year months such as June and July, where the UV Index drops slightly to 14 and 13, respectively, the risk remains significant, necessitating protective measures.
The UV Index data reveals a mild fluctuation in values, with January starting at 15 and peaking again in October at 16. With most months falling in the extremes, particularly from February to May, maintaining skin protection is critical to prevent harmful effects from prolonged sun exposure. The limited variance in burn times reinforces the need for vigilance throughout the year, making it imperative for those in Aceh to prioritize sun safety measures to mitigate UV-related health risks.
UV Risk Categories
In Aceh, Indonesia, daylight duration exhibits a consistent pattern throughout the year, reflecting the region's equatorial position. January and February both deliver 11 hours of daylight, setting the stage for gradual changes as the year progresses. By March, the days lengthen to 12 hours, which remains stable from March through September. This relatively constant daylight period enhances the region’s tropical climate and supports various ecological and agricultural activities.
As October approaches, daylight duration begins to taper off once again, returning to 11 hours in the final months of the year. This pattern suggests minimal seasonal variation compared to temperate regions, where significant changes in daylight hours are observed. Instead, Aceh's consistent light patterns contribute to a year-round cycle of growth and activity in its lush landscapes, while also affecting the daily rhythms of its inhabitants.
Sabang, Indonesia experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Average monthly temperatures range from a minimum of 24°C (76°F) in December to a maximum of 30°C (86°F) in the warmest months from April to September. The wettest month is November, receiving an average of 365 mm (14.4 in) of precipitation, while February tends to be the driest with only 54 mm (2.1 in). Despite the heavy rainfall, Sabang enjoys ample sunshine, particularly in March with 336 hours, making it a vibrant destination year-round. For more detailed information, visit Sabang climate.
In conclusion, Aceh, Indonesia, presents a unique and dynamic climatic profile characterized by its tropical rainforest climate, significant rainfall, high UV levels, and consistent daylight duration. The region's precipitation patterns highlight a pronounced wet season, with peak rainfall occurring from May to November, influencing both agricultural practices and natural ecosystems. Simultaneously, the extreme UV Index necessitates vigilant sun protection year-round, particularly during the sunniest and hottest months. Despite minimal variation in daylight hours, the steady exposure fosters a vibrant and biodiverse environment. Understanding these climatic factors is essential for residents and visitors alike, as they shape daily activities and overall well-being in this lush tropical paradise.