Last updated: August 21, 2025
December in Penang, Indonesia, brings a warm tropical climate characterized by maximum temperatures reaching 31°C (87°F) and a comfortable average of 26°C (79°F). While the island enjoys mild warmth, it also experiences high humidity levels at 72%, making the air feel quite tropical. However, visitors should be prepared for frequent rainfall, with 338 mm (13.3 in) expected over nearly every day of the month (28 days), giving Penang its lush green landscapes. Whether you're soaking in the vibrant culture or exploring the natural beauty, December's mix of warmth and rain creates a unique experience for travelers.
In December, Penang, Indonesia, experiences a delightful warmth that marks the transition into the new year. With minimum temperatures around 23°C (74°F) and daily averages hovering around 26°C (79°F), the island presents a tropical atmosphere that's both comfortable and inviting. As daytime temperatures can reach up to 31°C (87°F), the month offers plenty of opportunity for sun-filled excursions and beach activities. Compared to the preceding months, December showcases a slight increase in warmth, suggesting a gradual return to the hotter, more humid conditions typical of the region. Overall, it's a perfect time to explore Penang's vibrant culture and stunning landscapes under the clear, sunny skies.
In December, Penang experiences significant rainfall, with an impressive 338 mm (13.3 in) of precipitation spread over 28 days. This trend marks a slight drop from the previous month’s deluge, where November recorded 383 mm (15.1 in). Despite the decrease, December remains one of the wetter months of the year, contributing to the region's lush, tropical landscape. Notably, the precipitation frequency increases during this month, suggesting that while the volume may taper off slightly, rain showers are still a common companion for those navigating the island's vibrant streets. As the year draws to a close, the atmosphere is enriched with the sounds of rain, weaving a beautiful tapestry of life in Penang.
In Penang, Indonesia, December brings a slight rise in humidity to 72%, marking a gentle increase as the year comes to a close. This month is notable as it follows a steady decline in humidity throughout the latter half of the year, with October and November recording their lowest levels at 69%. The humidity trend showcases a transition from the more humid conditions of the early months, such as February's peak of 84%, down to the more comfortable levels of mid-year. December's humidity reflects a return to a more moderate climate, preparing the region for the impending monsoon season while still retaining a touch of tropical warmth.
In December, the UV Index in Peneng, Indonesia reaches a notable 15, categorizing it as extreme, with a rapid burn time of just 10 minutes. This pattern of intense UV exposure is consistent throughout the year, showcasing a trend where the UV Index remains particularly high from January to April and September to November, often peaking at 16 in February and March. Even in the midst of rainy seasons, safety against sunburn is crucial, as exposure risks remain significant. As you plan outdoor activities, be sure to stay informed and take protective measures against the sun’s rays. For more details on UV levels throughout the year, check out Peneng UV Index.
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December in Penang, Indonesia, boasts a delightful 290 hours of sunshine, maintaining a warm glow that characterizes the month. This figure reflects a slight decrease from October's peak of 318 hours, yet it stands resilient amid the year's sunny climax. As the seasons shift from July's and August's dazzling heights of over 300 hours, the transition into the festive end of the year brings comforting daylight. Notably, December, along with November, wraps up the year on a high note, showcasing a consistent pattern of plentiful sunshine that enriches the vibrant landscape. Whether basking in the sun or exploring the rich culture, visitors can still enjoy ample daylight in this sun-kissed paradise.
As the year winds down, December in Penang, Indonesia, sees a modest 13% chance of sunny weather. This figure reflects a notable dip from the more vibrant months of April and July, where sunshine is more abundant, boasting chances as high as 43%. Following a brief resurgence in sun-soaked days during the peak months, the likelihood drops sharply in November—plummeting to a mere 5%—before crawling back up to its December average. Overall, while December doesn't promise bountiful sun, it hints at a gradual return to clearer skies as the region transitions from the wet season, offering brief glimpses of sunlight amid the usual tropical showers.
In Penang, Indonesia, daylight duration presents a fascinating annual rhythm, with consistent patterns observed throughout the year. From January through March, the island enjoys a generous 12 hours of daylight, providing ample opportunity for outdoor adventures and exploration. As the region transitions into April, daylight begins to dwindle slightly, settling at 11 hours from April to August. This period marks a tranquil phase where shorter days encourage cozy gatherings and local festivities. Interestingly, as autumn fades and December arrives, sunlight returns to its previous 12-hour bounty. This cyclical shift not only showcases the tropical climate's stability but also invites residents and visitors alike to savor the unique charm of Penang's varying daylight throughout the year.
As December sweeps into Penang, Indonesia, the breezy whispers of the monsoon season begin to fade, leaving the air lighter with an average wind speed of 2.2 m/s (5 mph). This marks a slight increase from November's calmest moments, where winds barely reached 1.5 m/s (3 mph). The trend showcases a gentle resurgence in wind activity that mirrors the average conditions seen in the earlier months of the year. Surprisingly, it stands as a precursor to the rainfall, as the winds begin to prepare the landscape for the upcoming shifts in weather patterns. With an overall annual climax hitting peaks in July and August at 3.1 m/s (7 mph), December's mild winds offer a refreshing transition into the new year, perfect for those seeking a serene escape amidst Penang's picturesque vistas.
Weather in Peneng varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Peneng, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather features warm temperatures with a minimum of 23°C (74°F) and an average of 26°C (79°F), peaking at 31°C (87°F). This month experiences considerable rainfall, totaling 338 mm (13.3 in) over 28 days, resulting in a humidity level of 72%. In comparison, January sees slightly cooler temperatures, with a minimum of 22°C (72°F) and the same average and maximum temperatures as December. However, January is wetter, recording 377 mm (14.9 in) of precipitation across 24 days and higher humidity at 78%. For more detailed information, you can check Peneng weather in January.
December and February present quite similar temperatures, with both months experiencing a minimum of around 23°C (73°F) and an average of 26°C (78°F). However, February tends to be slightly cooler at the maximum, reaching only 30°C (87°F) compared to December's peak of 31°C (87°F). Precipitation is quite prominent in both months, but February sees a higher total of 352 mm (13.8 in) spread over 26 days, compared to December's 338 mm (13.3 in) over 28 days. Additionally, February's humidity is noticeably higher at 84%, creating a more muggy atmosphere than that of December, which averages 72%. For more detailed insights, check Peneng weather in February.
In December, the weather is characterized by a minimum temperature of 23°C (74°F) and an average of 26°C (79°F), peaking at a maximum of 31°C (87°F). The month experiences a significant amount of rainfall, with 338 mm (13.3 in) spread over 28 days, contributing to a humidity level of 72%. In contrast, March shows a slightly cooler minimum temperature of 22°C (72°F) and a similar average of 26°C (79°F), with a high of 30°C (87°F). Rainfall increases slightly to 350 mm (13.8 in) over 29 days, leading to a higher humidity of 82%. For more detailed insights into March weather, you can visit Peneng weather in March.
In comparing the weather between December and April, both months feature similar average temperatures, hovering around 26°C (79°F). However, December tends to be slightly warmer, with maximum temperatures reaching up to 31°C (87°F) compared to April's peak of 30°C (87°F). December is characterized by significantly higher rainfall, with 338 mm (13.3 in) occurring over 28 days, while April sees a more manageable 186 mm (7.3 in) across 23 days. Additionally, humidity levels are higher in April at 80%, compared to December's 72%, making April feel somewhat more humid. For a closer look at the specifics of the April weather, you can refer to Peneng weather in April.
December and May both showcase warm temperatures, but December tends to be slightly hotter with averages ranging from 23°C (74°F) to a maximum of 31°C (87°F), compared to May's range of 22°C (72°F) to 30°C (86°F). However, December is significantly wetter, receiving 338 mm (13.3 in) of precipitation over 28 days, while May experiences a much lighter rainfall of 89 mm (3.5 in) over just 16 days. Humidity levels also reflect a difference, with December at 72% and May slightly higher at 79%. For more detailed weather information, you can refer to Peneng weather in May.
December and June present contrasting weather patterns. In December, the temperatures range from a minimum of 23°C (74°F) to a maximum of 31°C (87°F), with an average of 26°C (79°F). This month is quite wet, experiencing significant precipitation of 338 mm (13.3 inches) over 28 days, resulting in humidity levels of 72%. In contrast, June is slightly cooler, with temperatures ranging from 21°C (70°F) to a maximum of 29°C (84°F) and an average of 24°C (76°F). Rainfall is considerably lower in June, totaling 85 mm (3.4 inches) across 17 days, and the humidity is slightly higher at 76%. For more details, you can check Peneng weather in June.
When comparing the weather in December and July, we see notable differences in temperature and precipitation. December boasts higher temperatures, with a minimum of 23°C (74°F) and an average of 26°C (79°F), reaching up to a maximum of 31°C (87°F). In contrast, July's temperatures are slightly cooler, with a minimum of 20°C (68°F) and an average of 24°C (75°F), peaking at 28°C (83°F). Additionally, December experiences significantly more rainfall, totaling 338 mm (13.3 in) spread over 28 days, while July sees only 62 mm (2.5 in) of rain over 16 days. The humidity is quite similar in both months, hovering around 72-73%. For more detailed insights about July weather, you can check out Peneng weather in July.
In December, the weather is notably warmer and wetter compared to August. With minimum temperatures starting at 23°C (74°F) and reaching a maximum of 31°C (87°F), December offers an average temperature of 26°C (79°F). In contrast, August has milder temperatures, with a range of 19°C (67°F) to 28°C (82°F) and an average of 23°C (74°F). Additionally, December experiences significant rainfall, with 338 mm (13.3 in) spread over 28 days, while August is drier with only 63 mm (2.5 in) across 16 days. Despite the differences in precipitation and temperature, both months maintain a consistent humidity level of around 72%. For more information on the weather in August, you can visit Peneng weather in August.
In December, the weather tends to be significantly warmer and wetter compared to September. With minimum temperatures around 23°C (74°F) and maximum reaches up to 31°C (87°F), December exhibits an average temperature of 26°C (79°F). The month is also characterized by high precipitation levels, totaling 338 mm (13.3 in) over 28 days, resulting in a humid environment with 72% humidity. In contrast, September features milder temperatures, ranging from a minimum of 20°C (68°F) to a maximum of 28°C (84°F), with an average of 24°C (76°F). This month experiences far less rainfall, accumulating only 66 mm (2.6 in) across 16 days and maintaining a slightly lower humidity of 71%. For more detailed insights on the weather during this month, you can check out Peneng weather in September.
December tends to be warmer and wetter compared to October, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (87°F) in December, as opposed to October’s range of 21°C (70°F) to 29°C (85°F). The humidity is slightly higher in December, sitting at 72% compared to October's 69%. Notably, December also experiences significantly more rainfall, with 338 mm (13.3 in) over 28 days, while October sees only 94 mm (3.7 in) across 18 days. For more insight into October weather patterns, you can check Peneng weather in October.
In comparing December and November weather, we see that December is slightly warmer, with average temperatures reaching 26°C (79°F) compared to November's average of 25°C (78°F). December also experiences a higher maximum temperature of 31°C (87°F), while November peaks at 30°C (86°F). However, December has more significant rainfall, with total precipitation of 338 mm (13.3 in) over 28 days, surpassing November's 383 mm (15.1 in) over 24 days. Humidity levels are somewhat higher in December at 72%, compared to November's 69%. For more detailed weather insights, you can visit Peneng weather in November.
December in Peneng brings a notable shift in weather patterns compared to other months. With an average temperature of 26°C (79°F) and frequent rainfall, this month is characterized by its high humidity levels, hovering around 72%. The city experiences nearly constant precipitation with rain falling on 28 days, contributing to a total of 338 mm for the month. The warmth combined with the omnipresent moisture creates a tropical ambiance, making it a unique experience for visitors. For those looking to understand the overall climate of the region, more details can be found at Peneng Climate.