Last updated: January 18, 2025
West Sumatra, Indonesia, exhibits a tropical rainforest climate classified under the Köppen-Geiger system as Af. Characterized by high humidity and substantial rainfall, the region experiences a minimum temperature of 13°C (56°F) in September, while the annual average temperature hovers around 24°C (76°F). The peak warmth is typically recorded in April, reaching maximums of 35°C (96°F). This unique climatological environment contributes to the rich biodiversity and lush landscapes, making West Sumatra a critical area for ecological study and conservation efforts.
Temperature patterns in West Sumatra, Indonesia, reveal a stable tropical climate with minimal variation throughout the year. Monthly minimum temperatures fluctuate between 13°C (56°F) in September and 17°C (63°F) in May, while average temperatures maintain a consistent 24°C (75°F). Maximum temperatures peak at 35°C (96°F) from February to April, with a slight dip to 34°C (94°F) during the remaining months. Notably, the cooler months occur from August to September, when both minimum temperatures dip and maximums reach their highest levels. This relatively stable temperature range, characterized by warmth and humidity year-round, underscores the region's tropical rainforest climate and supports its diverse ecosystems.
In Maninjau, temperatures range from a cool minimum of 15°C (60°F) in September to a warm maximum of 31°C (89°F) in March, offering a pleasant climate year-round, as detailed in the monthly temperatures in Maninjau. Nearby Padang experiences slightly warmer weather, with minimums of 24°C (75°F) in November and highs reaching 32°C (89°F) in May, as noted in the monthly temperatures in Padang. Meanwhile, Bukittinggi shares similar temperature ranges with Maninjau, featuring minimums of 15°C (60°F) in September and maximums of 31°C (89°F) in March, highlighted in the monthly temperatures in Bukittinggi.
West Sumatra, Indonesia, experiences a pronounced wet season, with precipitation levels peaking from March to November. March records the highest rainfall, averaging 345 mm (13.6 in) over approximately 27 days. This is closely followed by November, which sees 402 mm (15.8 in) of rainfall, marking it as the wettest month. In addition, April and May also contribute significant rainfall totals of 334 mm (13.1 in) and 312 mm (12.3 in), respectively, supporting the region's lush tropical ecosystem. The distribution of rain through the year highlights the region's persistent humidity and abundant moisture.
While the wet season dominates, West Sumatra does see a reduction in precipitation during the drier months of June and July, where rainfall drops to 212 mm (8.3 in) and 241 mm (9.5 in), respectively. The frequency of rainy days varies, peaking at 27 days in March and April, then tapering to approximately 20 days in January. This pattern of precipitation not only influences local agriculture but also plays a vital role in sustaining the region's rich biodiversity. Overall, the climatic dynamics of rainfall in West Sumatra underscore its tropical rainforest classification, fostering an environment ripe for ecological diversity.
In West Sumatra, Indonesia, sunshine duration displays a notable seasonal pattern, with a gradual increase in sunlight hours from January through mid-year. Beginning with 229 hours of sunshine in January, the region experiences a consistent upward trend, peaking in July with an impressive 310 hours. This peak marks the height of the dry season, where clear skies and abundant sunlight are prevalent, providing ideal conditions for outdoor activities and agricultural practices. The months preceding this peak—February, March, and June—also contribute significantly to the sunshine totals, with values ranging from 276 to 288 hours, reflecting the region's transition into the sunnier periods.
As the year progresses into the latter half, a decline in sunshine hours is observed from July onward, with August and September offering a slightly lower yet substantial 306 hours and 285 hours, respectively. By November, sunshine hours drop to 250 hours, marking the onset of the wetter months characterized by increased rainfall and diminished sunlight. This decline continues into December, presenting 274 hours of sunshine. Ultimately, analyzing sunshine duration in West Sumatra reveals distinct seasonal trends that influence not only local climate patterns but also agricultural cycles and daily life for its inhabitants.
In West Sumatra, Indonesia, the UV Index remains consistently high throughout the year, indicating an extreme risk of harm from unprotected sun exposure. The sun's intensity peaks in February, March, and April, where the UV Index reaches an alarming 17, necessitating caution with recommended burn times limited to just 10 minutes. Such high UV levels underscore the importance of protective measures, including sunscreen application and the use of UV-blocking eyewear, particularly during these months when outdoor activities are common due to favorable weather conditions.
As the year progresses, while the UV Index shows slight fluctuations, it generally remains in the extreme category, with values ranging from 13 to 17. Notable months like June and July see a dip to 13, yet the risk level remains high. Even in the later months, such as October and December, ratings of 15 ensure that residents and visitors should remain vigilant against sun exposure. The consistent extreme UV Index throughout the year serves as a critical reminder for those living in or traveling to West Sumatra to prioritize sun safety and minimize exposure during peak hours.
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In West Sumatra, Indonesia, daylight duration remains remarkably consistent throughout the entire year, with an average of 12 hours of daylight each day. This uniformity can be attributed to the region's tropical location near the equator, which results in minimal variation in day length regardless of the season. Such consistency allows for a stable routine regarding daily activities, agriculture, and local lifestyles, as residents can rely on predictable hours of sunlight year-round.
This continuous 12-hour daylight pattern, combined with the region's high humidity and temperature, creates an environment conducive to a diverse range of flora and fauna. Even with no significant changes in daylight duration, the lush landscapes and ecosystems thrive, supported by the abundant sunlight available throughout the year. For both residents and tourists, the perpetual daylight enhances opportunities for outdoor activities, exploration, and experiencing the rich biodiversity that West Sumatra has to offer.
Bukittinggi, Indonesia, features a tropical climate with average temperatures ranging from 18°C (64°F) to 24°C (75°F) throughout the year, peaking at a maximum of 31°C (88°F) in the warmer months. The region experiences significant rainfall, particularly in March and November, with precipitation exceeding 400 mm (15.7 in) during these months. Despite the abundant rain, Bukittinggi enjoys a good amount of sunshine, especially from July to September, where sunny hours reach up to 308 hours. The combination of moderate temperatures and distinct wet seasons makes Bukittinggi a unique climate destination. For more details, visit Bukittinggi climate.
Maninjau, Indonesia experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Average temperatures range from 23°C (74°F) to a maximum of 31°C (88°F), with January and February being slightly cooler months. Precipitation peaks in November with 499 mm (19.6 in) and is consistently high from March to October, contributing to lush surroundings. Despite the rain, the area benefits from ample sunshine, especially in the dryer months of July and August, with around 308 hours of sunlight. For more details, visit Maninjau climate.
Padang, Indonesia, experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Monthly averages range from a minimum of 24°C (76°F) to a maximum of 32°C (89°F), with the warmest months typically being May and February. Rainfall peaks from March to April, with April receiving the highest precipitation at 413 mm (16.2 in), while July tends to be the driest month. Despite heavy rainfall, the city enjoys ample sunshine, particularly in July with 310 hours of sunlight. For more detailed information, visit Padang climate.
Singkarak, Indonesia experiences a tropical climate with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 32°C (90°F) throughout the year. The region sees significant rainfall, particularly from March to November, with November recording the highest precipitation at 386 mm (15.2 in). Despite the rainfall, Singkarak enjoys ample sunshine, peaking in July with 310 hours. The average temperature remains stable around 23°C (74°F) year-round, making it a warm and humid destination. For more details, visit Singkarak climate.
In conclusion, West Sumatra, Indonesia, presents a unique climatic profile characterized by its tropical rainforest climate, consistent daylight duration, and high UV Index throughout the year. With stable temperatures averaging 24°C and extreme UV exposure reaching values as high as 17, the region demands vigilant sun protection measures. Rainfall peaks significantly during the wet season, particularly from March to November, while the steady 12-hour daylight cycle enhances the region's rich biodiversity and agricultural viability. Together, these climatic factors contribute to the ecological richness and cultural vibrancy of West Sumatra, making it a significant area for both natural conservation and sustainable development.