Last updated: August 21, 2025
January in Penang, Indonesia presents a warm and humid tropical climate, with maximum temperatures reaching up to 31°C (87°F) and an average of 26°C (78°F), providing a cozy atmosphere for visitors. However, be prepared for considerable rainfall, as the island experiences an impressive 377 mm (14.9 in) of precipitation over approximately 24 days, making it one of the wettest months of the year. With humidity levels soaring to 78%, this vibrant destination showcases the lush, green landscapes that thrive under such conditions, inviting travelers to enjoy its natural beauty amidst the gentle rains.
In January, Penang, Indonesia experiences a warm tropical climate with minimum temperatures hovering around 22°C (72°F) and peaking at a maximum of 31°C (87°F). The average temperature remains comfortably at 26°C (78°F), setting a pleasant backdrop for outdoor activities. As the month progresses into February, temperatures see a slight uptick, with minimums increasing to 23°C (73°F) while the maximums stabilize around 30°C (87°F). This trend of consistently warm weather and minimal fluctuation in daily averages hints at a tropical climate that remains inviting throughout the early months of the year. Subsequent months like March and April maintain this warm pattern, showing little deviation in averages, which suggests that January's balmy conditions are a precursor to the steady warmth that Penang enjoys as the year unfolds.
In Penang, Indonesia, January marks a significant peak in precipitation, recording an impressive 377 mm (14.9 in) across 24 days of rain. This deluge sets the stage for a wet season, as precipitation remains high in November at 383 mm (15.1 in), showcasing a consistent pattern of rainfall early in the year. Following January, February and March show a slight decrease, with 352 mm (13.8 in) and 350 mm (13.8 in) respectively, while the number of rainy days begins to increase, peaking in March with 29 days of precipitation. As the months progress into drier periods, April to June experience a sharp decline in total rainfall, dropping to as low as 89 mm (3.5 in) in May. This seasonal rhythm highlights the tropical climate’s characteristic of heavy rains at the start of the year, giving way to notably drier months during the mid-year.
In January, Peneng, Indonesia, experiences a notable humidity level of 78%, setting the stage for a typically tropical atmosphere. As the month progresses into February, humidity peaks at 84%, marking the year’s highest level and signaling the onset of the wetter season. Following this, humidity slightly decreases to 82% in March and maintains a relatively stable range throughout the subsequent months, hovering around 80% until May. By June, the trend shifts downward, with humidity gradually declining to 73% by July and reaching its annual low of 69% in both October and November. The cycle concludes with a slight rebound to 72% in December, highlighting the characteristic ebb and flow of Peneng’s humid climate throughout the year.
In January, Peneng, Indonesia experiences an extreme UV Index of 15, indicating a significant risk of harm from unprotected sun exposure, with a burn time of just 10 minutes. This high level of UV radiation continues into the following months, with February and March peaking at 16, reinforcing the need for sun protection. Despite a slight decrease in April to 14 and May to 12, the threat remains serious. As the year progresses, the UV Index fluctuates; June marks the transition to a very high exposure category, with a burn time extending slightly to 15 minutes. However, the extreme levels return in July and August, showcasing a persistent risk that recurs in September and October, both soaring back to 15. November sees a minor dip to 14, before wrapping up the year in December at 15. With such consistently high UV levels throughout the year, staying informed about sun safety is crucial for residents and visitors alike. For more details on UV levels, refer to Peneng UV Index.
UV Risk Categories
January in Penang, Indonesia, shines with 226 hours of sunlight, laying a gentle foundation for the year ahead. As the weeks progress into February, sunshine increases to 267 hours, setting the stage for a slow but steady rise. March and April maintain this momentum, each boasting 292 hours, while May truly bursts forth with 306 hours, heralding the onset of summer warmth. The peak of sunlight arrives in July and August, with 307 and 311 hours respectively, offering long, sun-drenched days perfect for exploration. Even as September and October follow, with 304 and 318 hours, the brilliance of the sun seems endless. As the year closes out in November and December, sunshine dips back to 290 hours, but the allure of Penang’s bright skies remains ever-present, making January's offerings merely a glimpse into this mesmerizing tropical paradise.
In January, the likelihood of sunny weather in Penang, Indonesia, is quite low, with only a 3% chance of sunshine. This trend continues into February, where the probability slightly increases to 5%. As we move through the months, a noticeable transformation occurs; by March, the chance of sunny days rises to 13%, signaling the onset of a more favorable climate. The transition continues into April and July, where the chances of enjoying sunny weather soar to around 43%, showcasing the peak of dry conditions. Conversely, the latter part of the year sees a dip again, with November and December reverting to a mere 5% and 13% sunny probability, respectively. This cyclical pattern highlights the significant seasonal variation in Penang's weather, emphasizing that if you seek sun, it's best to plan your visit between April and July.
In Penang, Indonesia, January marks the beginning of a consistent daylight pattern, with 12 hours of sunlight illuminating the days throughout the month. This trend of balanced daylight continues into February and March, providing a steady rhythm that embraces the bright tropical ambiance. However, as the calendar progresses to April through August, daylight slightly diminishes to 11 hours, hinting at the seasonal subtleties. Come September, the sun’s return ignites another shift, as daylight stretches back to 12 hours, continuing through most of the year. This pattern highlights a captivating cycle of sunlight that not only shapes daily life in Penang but also reflects the region's enchanting tropical allure as it balances between lush daylight and the calming embrace of evening.
In January, Penang, Indonesia, experiences a gentle breeze with an average wind speed of 2.2 m/s (5 mph), setting the tone for a month that feels refreshing yet calm. As we transition into February, the winds slightly ease to 2.0 m/s (5 mph), maintaining a tranquil atmosphere. This marks the beginning of a gradual decline in wind speeds, reaching a minimum of 1.5 m/s (3 mph) in November, just before the winds begin to pick up again in December. Interestingly, June, July, and August stand out as the breeziest months, featuring consistent winds of 3.1 m/s (7 mph), perfect for outdoor activities. Overall, the wind patterns reveal a seasonal variability, with the beginning of the year characterized by softer gusts, giving way to a more animated breeziness as the year progresses.
Weather in Peneng varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Peneng, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of January and February, both months share similar average temperatures, hovering around 26°C (78°F). However, January tends to be slightly warmer with maximum temperatures reaching up to 31°C (87°F), compared to February's max of 30°C (87°F). Precipitation levels are also notable; January receives 377 mm (14.9 in) over 24 days, while February records slightly less at 352 mm (13.8 in) across 26 days. Interestingly, February experiences higher humidity at 84%, compared to January's 78%, contributing to a more sultry feel. For detailed insights, you can check Peneng weather in February.
In January, the weather features a warm minimum temperature of 22°C (72°F) and an average of 26°C (78°F), reaching a maximum of 31°C (87°F). However, it experiences significant rainfall, with 377 mm (14.9 in) over 24 days, coupled with a humidity level of 78%. In contrast, March sees a similar minimum temperature of 22°C (72°F) and an average of 26°C (79°F), but a slightly lower maximum temperature of 30°C (87°F). Although March has a bit less precipitation at 350 mm (13.8 in) across 29 days, the humidity increases to 82%. To explore more about this time of year, check out Peneng weather in March.
January and April showcase similar temperature ranges, with both months experiencing a minimum of 22°C (72°F) and an average of around 26°C (78°F). However, January is notably wetter, receiving 377 mm (14.9 in) of precipitation over 24 days, compared to April's 186 mm (7.3 in) over just 23 days. Humidity levels are slightly higher in April, at 80%, compared to January's 78%. Despite these differences in precipitation and humidity, both months maintain warm temperatures, making them conducive to outdoor activities. For a closer look at April's weather specifics, you can check out Peneng weather in April.
In January, the weather tends to be hotter and wetter compared to May, with average temperatures ranging from a minimum of 22°C (72°F) to a maximum of 31°C (87°F) and significant precipitation totaling 377 mm (14.9 in) over 24 days. In contrast, May experiences slightly cooler temperatures, with averages from 22°C (72°F) to 30°C (86°F), and much less rainfall, totaling 89 mm (3.5 in) over 16 days. While humidity levels remain relatively similar, January's higher precipitation makes it a notably wetter month than May. For more specifics on May weather, you can check Peneng weather in May.
January and June present distinct weather patterns. In January, temperatures range from a minimum of 22°C (72°F) to a maximum of 31°C (87°F), with an average of 26°C (78°F). The month is characterized by significant rainfall, totaling 377 mm (14.9 in) over 24 days, and a humidity level of 78%. In contrast, June features slightly cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 29°C (84°F), averaging 24°C (76°F). Rainfall is much lower at 85 mm (3.4 in) over 17 days, accompanied by a slightly decreased humidity of 76%. Overall, January is wetter and warmer, while June offers milder conditions with less precipitation. For more detailed information, visit Peneng weather in June.
January weather is characterized by warmer temperatures, with minimums of 22°C (72°F) and averages reaching 26°C (78°F), compared to July, which has a slightly cooler minimum of 20°C (68°F) and an average of 24°C (75°F). The maximum temperatures in January can climb to 31°C (87°F), higher than July’s maximum of 28°C (83°F). Additionally, January experiences significantly more rainfall, with 377 mm (14.9 in) over 24 days, while July sees only 62 mm (2.5 in) across 16 days, resulting in lower humidity levels of 73% in July compared to 78% in January. For more details, you can check out Peneng weather in July.
In January, the weather is typically warmer and more humid, with average temperatures reaching up to 26°C (78°F) and high levels of precipitation at 377 mm (14.9 in) over 24 days. The humidity is also quite high at 78%, making January a notably muggy month. In contrast, August features milder temperatures, with an average of 23°C (74°F) and a significant drop in rainfall to 63 mm (2.5 in) over just 16 days. The humidity in August is slightly lower at 72%, contributing to a more comfortable experience overall. For more details about weather patterns in August, check out Peneng weather in August.
January and September exhibit distinct differences in weather patterns. In January, temperatures are generally warmer, with minimums around 22°C (72°F) and maximums reaching 31°C (87°F). Additionally, this month experiences significant rainfall, averaging 377 mm (14.9 in) over 24 days, resulting in a humid atmosphere with an average humidity of 78%. In contrast, September brings cooler temperatures, with a minimum of 20°C (68°F) and a maximum of 28°C (84°F). Rainfall is considerably less during this month, totaling only 66 mm (2.6 in) over 16 days, and humidity decreases to an average of 71%. For more insights into weather specifics, you can check Peneng weather in September.
In January, the weather is notably warmer and more humid than in October, with temperatures averaging 26°C (78°F) and reaching highs of up to 31°C (87°F). January experiences significant rainfall, totaling 377 mm (14.9 inches) over 24 days, contributing to the high humidity of 78%. In contrast, October offers a slightly cooler atmosphere, with average temperatures around 25°C (77°F) and maximums of 29°C (85°F). Precipitation in October is much lower at 94 mm (3.7 inches) over 18 days, resulting in a more comfortable humidity level of 69%. For more details on October weather, visit Peneng weather in October.
In January, the weather tends to be slightly warmer with average temperatures reaching around 26°C (78°F) and maximums climbing to 31°C (87°F), while November sees a slightly cooler average of 25°C (78°F) and maximums around 30°C (86°F). Both months experience significant rainfall, with January receiving 377 mm (14.9 in) and November slightly more at 383 mm (15.1 in), resulting in a similar number of rainy days—24 in each month. However, November has lower humidity at 69%, compared to January's 78%, making it feel a bit more comfortable overall. For a closer look at the weather specifics in November, you can check out Peneng weather in November.
In comparing the weather of January and December, January experiences slightly cooler temperatures, with a minimum of 22°C (72°F) compared to December's minimum of 23°C (74°F). Both months have an average high of 31°C (87°F), but January is marked by increased precipitation, totaling 377 mm (14.9 in) over 24 days, compared to December's 338 mm (13.3 in) over 28 days. Additionally, January has a higher humidity level at 78%, while December's humidity is relatively lower at 72%. For more detailed insights into December's weather, you can visit Peneng weather in December.
January in Peneng presents a unique blend of warm temperatures and heightened humidity, making it distinctly different from the milder months that precede and follow it. With averages hovering around 26°C and maximums reaching up to 31°C, this month is marked by significant precipitation, typically totaling around 377 mm over about 24 days. This increase in rainfall not only contributes to the lush, vibrant landscape but also leads to a more humid atmosphere, with humidity levels consistently around 78%. Travelers seeking a tropical experience should come prepared for wet weather, as January sets the stage for a lush environment that’s characteristic of Peneng’s tropical charm. For a more in-depth look at what to expect throughout the year, visit Peneng Climate.