Last updated: August 31, 2025
December in Mount Hagen, Papua New Guinea is characterized by a mild tropical climate with maximum temperatures reaching 26°C (80°F) and comfortably averaging around 18°C (65°F). As the month unfolds, residents and visitors experience a significant rainfall, accumulating to 468 mm (18.4 in) across 29 days, contributing to the region's lush greenery. High humidity levels at 88% accentuate the tropical atmosphere, making the air feel warm and invigorating. This combination of temperature and moisture creates a unique environment that showcases the natural beauty of Mount Hagen, inviting exploration and appreciation of its rich landscapes.
In December, Mount Hagen, Papua New Guinea, experiences a subtle warming trend as the year wraps up. With minimum temperatures hovering around 12°C (53°F), the region feels a bit cooler than the peak warmth seen earlier in the year but remains comfortably mild. The average temperature stabilizes at 18°C (65°F), maintaining consistency in the temperate climate that characterizes the area. Daytime highs can reach up to 26°C (80°F), offering a pleasant balance of warmth without the sweltering heat typical of lower-altitude locations. This month marks a shift towards the end of the year, yet the temperatures remain inviting, making December a delightful time to explore the natural beauty and vibrant culture of Mount Hagen.
In Mount Hagen, Papua New Guinea, December marks a significant transition in the region's climate, characterized by a noteworthy precipitation level of 468 mm (18.4 in) over 29 rainy days. While this volume reflects a slight decrease from the peak monthly totals seen in earlier months like February and March, it continues the trend of substantial rainfall that defines the region. The wetter months preceding December help to soften the landscape, fostering lush vegetation and vibrant ecosystems. As the year draws to a close, the consistent rainfall not only sustains local agriculture but also sets the stage for the upcoming dry season, offering a glimpse of the cyclical nature of Mount Hagen's climate.
In Mount Hagen, Papua New Guinea, December brings a slight dip in humidity, settling at 88%, a change from the high of 90% seen in November. Throughout the year, humidity remains consistently high, hovering around 89% from January to April before gradually decreasing during the dry season months of July and August, where it reaches a low of 86%. Interestingly, even with this seasonal fluctuation, the overall humidity levels remain notably high, indicative of the region's tropical environment. As December arrives, the shift to slightly lower humidity may provide a brief respite for residents and visitors alike, while still retaining that characteristically lush, verdant landscape that is a hallmark of this vibrant region.
In December, Mount Hagen continues to experience a notably high UV Index of 16, maintaining its position in the extreme exposure category, with a rapid burn time of just 10 minutes. This consistency in UV levels throughout the year highlights the region's intense sun exposure, especially evident from the peak values observed in the earlier months. After reaching an impressive index of 18 in March, the figures remain relatively steady and high, with only slight variations, reinforcing the importance of sun protection. As we round out the year, the continued extreme UV levels remind residents and visitors alike to stay vigilant in their sun safety practices. Discover more about the UV Index trends in Mount Hagen here.
UV Risk Categories
December in Mount Hagen, Papua New Guinea, brings a delightful blend of warm sunshine and vibrant landscapes, contributing to a notable 221 hours of sunlight. This figure reflects a subtle dip from the peak sunshine month of August, which boasts 259 hours, yet still showcases a significant brightness compared to the earlier months of the year. As one transitions from the lush rainy season of April and May, which illuminated the region with 195 and 236 hours, December’s warmth is a reminder of the region's remarkable climate fluctuations. The gradual increase in sunshine from January through July culminates in a dazzling peak throughout the mid-year, setting a festive tone as the year winds down. Overall, the consistent hours of sunlight in December ensure that Mount Hagen continues to charm with its natural beauty, inviting both locals and visitors to bask in the year-end warmth.
When considering the likelihood of sunny weather in Mount Hagen, Papua New Guinea during December, the prospects appear quite dim, with a mere 2% chance of sun. This aligns with a trend observed throughout the year, as December falls within a period characterized by low sunlight exposure. In contrast, June offers the brightest spot with a notable 26% chance, highlighting a significant seasonal variation. Following June, the chances gradually decline, reinforcing the notion that while certain months, like June and August, see a fair amount of sunshine, December remains one of the least favorable times for sun-seekers in this lush region.
In Mount Hagen, Papua New Guinea, the daylight duration exhibits a fascinating rhythm throughout the year. From January to March, residents enjoy a consistent 12 hours of daylight, basking in natural light almost equally across those early months. As the year progresses into April through August, daylight begins to wane slightly, settling into an average of 11 hours, which adds a cozy feel to the cooler months. However, come September, the trend shifts back to 12 hours, and this balanced daylight extends through the end of the year, with November and December reclaiming that consistent illumination. This cyclical pattern emphasizes the unique equatorial climate of Mount Hagen, where daylight remains almost unfaltering, wrapping the community in a perpetual embrace of light.
In Mount Hagen, Papua New Guinea, the December wind brings a gentle hush, averaging a modest 1.1 m/s (2 mph)—slightly lower than the consistent breezes of previous months. Throughout the year, wind speeds vary only subtly, hovering mostly around 1.1 to 1.2 m/s (2 to 3 mph), with July through November showing a steady peak. As the year draws to a close, the calming winds of December contribute to the already tranquil atmosphere, inviting introspection and a peaceful respite. This pattern underscores a unique climatic stability, creating an inviting environment for both residents and visitors alike.
Weather in Mount Hagen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mount Hagen, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January in Mount Hagen present relatively similar temperature patterns, with December experiencing minimum temperatures of 12°C (53°F) and January dropping slightly to 10°C (51°F). Both months have an average temperature of 18°C (65°F) and maximum temperatures reaching 26°C (80°F) in December and 27°C (80°F) in January. However, January sees a slight increase in precipitation, totaling 485 mm (19.1 in) over 23 days, compared to December's 468 mm (18.4 in) over 29 days. Humidity levels are also akin, with January at 89% and December at 88%. For more detailed information, you can check Mount Hagen weather in January.
In December, the weather features a minimum temperature of 12°C (53°F) and an average of 18°C (65°F), with a maximum reaching 26°C (80°F). The month experiences heavy rainfall, totaling 468 mm (18.4 in) over 29 days, yielding high humidity levels of 88%. In contrast, February sees slightly cooler nights with a minimum of 11°C (53°F), while daytime temperatures remain consistent, averaging 18°C (65°F) and peaking at 26°C (79°F). However, February is wetter, with precipitation rising to 528 mm (20.8 in) spread over 27 days and humidity reaching 89%. For more detailed insight into February's climate, you can visit Mount Hagen weather in February.
In December, the weather tends to be quite warm, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 26°C (80°F). The month experiences significant rainfall, with a total precipitation of 468 mm (18.4 in) over 29 days and high humidity at 88%.
By contrast, March sees slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 25°C (77°F), while maintaining a similar average of 18°C (64°F). However, it features even more rainfall, accumulating 548 mm (21.6 in) over 30 days, along with a slightly higher humidity of 89%. For a detailed look at March weather patterns, you can refer to Mount Hagen weather in March.
December and April exhibit similar temperature ranges, with averages around 18°C (65°F) and maximums peaking at approximately 26°C (80°F) in December and 25°C (78°F) in April. However, April tends to experience slightly more precipitation, totaling 515 mm (20.3 in) over 28 days compared to December’s 468 mm (18.4 in) across 29 days. Humidity levels are also closely matched, remaining high at about 88% in December and 89% in April. For a detailed look at April weather conditions, you can visit Mount Hagen weather in April.
In December, the weather is characterized by a wider temperature range with a minimum of 12°C (53°F) and a maximum of 26°C (80°F), averaging around 18°C (65°F). This month experiences significant rainfall, with a total of 468 mm (18.4 in) spread over 29 days, maintaining a high humidity of 88%. In contrast, May's temperatures are slightly cooler, ranging from a minimum of 11°C (52°F) to a maximum of 25°C (78°F), with a similar average of 18°C (64°F). Rainfall in May is also lower, at 287 mm (11.3 in) across 25 days, while the humidity remains consistent at 88%. For more specific details about weather during this month, visit Mount Hagen weather in May.
December and June present notably different weather patterns. In December, temperatures range from a minimum of 12°C (53°F) to a maximum of 26°C (80°F), with an average of 18°C (65°F). The month is characterized by heavy rainfall, with a total of 468 mm (18.4 in) spread across 29 days, while humidity remains consistently high at 88%. In contrast, June sees slightly cooler temperatures, with a minimum of 9°C (49°F) and a maximum of 24°C (75°F), averaging 17°C (63°F). Precipitation is significantly less in June at 197 mm (7.8 in) over 25 days, with similar humidity levels at 88%. For more detailed insights about the weather in June, you can check Mount Hagen weather in June.
In December, the weather is generally warmer, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 26°C (80°F), compared to July's lower temperatures, which range from 9°C (49°F) to 24°C (76°F). December also experiences significantly higher precipitation at 468 mm (18.4 in) over 29 days, while July sees only 213 mm (8.4 in) across 26 days. Despite both months having high humidity levels, December is slightly more humid at 88% compared to July’s 86%. For a more detailed look at July weather, you can visit Mount Hagen weather in July.
December and August showcase notable differences in weather patterns. December typically experiences mild temperatures, ranging from a minimum of 12°C (53°F) to a maximum of 26°C (80°F), with an average of 18°C (65°F). This month sees significant rainfall, with 468 mm (18.4 in) over 29 days and high humidity at 88%. In contrast, August is slightly cooler, with temperatures ranging from 11°C (51°F) to 24°C (76°F) and an average of 17°C (63°F). The precipitation in August is considerably lower at 200 mm (7.9 in) over 26 days, accompanied by a humidity level of 86%. For more detailed insights, you can refer to Mount Hagen weather in August.
In December, the weather is generally warmer compared to September, with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 26°C (80°F), while September sees slightly cooler averages with a minimum of 10°C (51°F) and a maximum of 25°C (77°F). Precipitation is significantly higher in December, totaling 468 mm (18.4 in) over 29 days, compared to September's 256 mm (10.1 in) over 24 days. Additionally, December experiences a higher humidity level at 88%, compared to September's 85%. For more specific information about September's weather, you can check Mount Hagen weather in September.
When comparing the weather in December and October, we see a slight increase in temperatures, with December averaging 18°C (65°F) compared to October's 17°C (64°F). December also experiences slightly higher maximum temperatures, reaching up to 26°C (80°F), while October peaks at 25°C (77°F). However, December is notably wetter, receiving 468 mm (18.4 in) of precipitation over 29 days, compared to October's 340 mm (13.4 in) over 27 days. Humidity levels are also marginally higher in December at 88%, compared to October's 86%. For a detailed look at the October weather, you can visit Mount Hagen weather in October.
In comparing the weather between November and December, both months experience similar temperature ranges, with December showing slightly higher minimum and maximum temperatures. November's temperatures range from a minimum of 10°C (50°F) to a maximum of 26°C (79°F), while December sees temperatures from 12°C (53°F) to 26°C (80°F). However, December is notably wetter, with a total precipitation of 468 mm (18.4 in) over 29 days, compared to November's 388 mm (15.3 in) across 27 days. Humidity levels are also slightly lower in December at 88%, compared to November’s 90%. For a more detailed look at the weather in November, you can check out Mount Hagen weather in November.
As December unfolds in Mount Hagen, the weather brings a unique charm that sets it apart from other months. With higher humidity levels and nearly the entire month experiencing rainfall, the region is enveloped in a lush, green ambience. While temperatures remain relatively mild, the maximum reaches a comfortable 26°C, offering a pleasant respite from the heat. This climactic shift transforms the landscape, making it an ideal time for exploration amidst the vibrant ecosystem. For more insights on how the weather impacts your visit, check out Mount Hagen Climate. Enjoy the rich, natural beauty that December has to offer!