December Weather in Kathmandu, Nepal

Last updated: August 31, 2025

December in Kathmandu, Nepal is characterized by mild temperatures and a refreshing chill in the air. With a maximum temperature reaching 22°C (71°F) and an average of 11°C (52°F), the days are comfortably cool, while the nights can dip to a brisk 2°C (35°F). Visitors can expect approximately 29 mm (1.1 in) of precipitation over about five days, making it the perfect time to experience the city's scenic beauty without the summer crowds. The humidity levels hover around 71%, adding to the crispness of the atmosphere. Overall, December offers a unique blend of tranquility and moderate weather ideal for exploring Kathmandu's rich cultural heritage.

December Temperature in Kathmandu

As December settles over Kathmandu, temperatures begin to dip, marking a transition into the cooler months. The month sees a minimum temperature hovering around 2°C (35°F), with an average of 11°C (52°F) and highs reaching up to 22°C (71°F). This gradual decrease in temperature from the milder autumn months illustrates a clear shift towards winter, while still offering pleasant daytime warmth for adventurers exploring the city's rich culture and stunning landscapes. As the year closes, the crisp air invites cozy gatherings, making December a perfect time to experience the festive atmosphere in this vibrant capital.

December Weather in Kathmandu: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Kathmandu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kathmandu, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec495360656872727271665852
Data source: Temperature data for Kathmandu generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Kathmandu

In December, Kathmandu experiences a gentle shift towards drier days, with precipitation dropping to 29 mm (1.1 in) over just 5 days of the month. This marks a stark contrast to the heavy rainfall typical of the summer months, where June and July record an overwhelming average of 523 mm and 1037 mm, respectively. As the city transitions from November's minimal 19 mm (0.8 in) rain to December's light precipitation, both locals and visitors can appreciate the clearer skies and cooler temperatures. This period thus signifies not only a decline in rainfall but also a pause before the winter months, highlighting Kathmandu's dynamic climate patterns.

December Precipitation Trends in Kathmandu

The chart displays monthly precipitation patterns in Kathmandu, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Kathmandu, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec51566711426552310377844081161929
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kathmandu

In December, Kathmandu's humidity hovers at a comfortable 71%, reflecting a gradual decline from the peak levels experienced during the monsoon months of July and August, where humidity soared to a steamy 92%. Following the heavy rains, November shows a drop to 76%, setting the stage for December's breezier conditions. As winter approaches, the city's humidity continues to decrease, aligning with trends observed from the previous months, where April marks the driest period at just 25%. This shift towards cooler and more comfortable weather makes December an appealing time for both locals and visitors alike, as the city transitions into its dry season amid stunning winter vistas.

December Average Humidity in Kathmandu

This chart illustrates the average monthly humidity levels in Kathmandu, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Kathmandu is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec58%53%32%25%46%77%92%92%92%87%76%71%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kathmandu

In December, Kathmandu experiences a moderate UV Index of 5, marking a gentle shift from the extreme levels seen in the summer months. This period allows for a more comfortable outdoor experience, with a burn time of 30 minutes, providing ample time to enjoy the city's stunning landscapes without the immediate risk of skin damage. As the year progresses from January's moderate levels to the significant peaks in the spring and summer, December offers a reprieve, emphasizing a trend of decreasing UV intensity as winter approaches. For those planning outdoor activities, it’s still wise to remain cautious and protect your skin. For detailed insights into UV trends throughout the year, visit Kathmandu UV Index.

Maximum UV Index Levels in Kathmandu for December

The chart shows the monthly maximum UV Index (UVI) for Kathmandu in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Kathmandu typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5791111131413121075
Data source: Kathmandu December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Kathmandu

In December, Kathmandu basks in a gentle glow, accumulating around 289 hours of sunshine—a fitting conclusion to a year marked by increasingly longer days. As winter approaches, the vibrant brightness contrasts with the previous months, particularly December's slight dip from the peak hours of May. The trend shows a gradual rise in sunshine from the depths of July, with its lowest tally of 227 hours, steadily climbing through the autumn months. By this time of year, the city welcomes a blend of crisp air and radiant skies, inviting both locals and visitors to revel in the serene beauty of the Himalayas bathed in winter light.

Monthly Sunshine Duration in Kathmandu: December Highlighted

The December sunshine duration represents the total number of hours Kathmandu experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec241h281h336h340h349h314h227h246h267h315h290h289h
Data source: Kathmandu December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kathmandu During December

In December, Kathmandu enjoys a favorable 60% chance of sunny weather, an encouraging sign as the city transitions from the monsoon rains of the summer months. This marks a significant improvement compared to the gloomy conditions seen in the preceding months, such as the meager 4% in July and a mere 2% in August. As the year ends, the likelihood of sunlight begins to rise steadily; from November's 47%, the trend reflects a gradual return to sunnier skies. This makes December an appealing time for visitors and locals alike to soak in the beauty of the capital under bright, crisp sunlit days. With such a high likelihood of pleasant weather, outdoor activities and exploration are highly recommended during this month.

Percentage of Sunny Days in December in Kathmandu

The chart illustrates the percentage of sunny days in Kathmandu throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Kathmandu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec55%67%69%71%28%18%4%2%14%41%47%60%
Data source: Kathmandu December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kathmandu in December

As December arrives in Kathmandu, the city experiences a return to shorter days, with only 10 hours of daylight marking the winter solstice. This decline in sunlight follows a gradual increase from January through May, where daylight stretches to a robust 13 hours in the peak months of May through July. The transition back to shorter days is gentle, dropping to 12 hours in September and November before settling into December’s crisp light. The rhythm of daylight in Kathmandu illustrates the city’s shifting seasons, creating a cozy atmosphere perfect for enjoying the cool winter nights.

Average Daylight Hours in Kathmandu for December

The chart illustrates the variation in daylight duration in Kathmandu throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 35m11h 12m12h12h 49m13h 30m13h 51m13h 40m13h 4m12h 17m11h 28m10h 46m10h 24m
Data source: Kathmandu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Kathmandu

As December approaches in Kathmandu, the average wind speed settles at 1.1 m/s (approximately 3 mph), mirroring the gentle breezes of the preceding months. This slight uptick from autumn suggests a shift toward the cooler winter months, where the winds remain predominantly calm throughout the year. The city's wind patterns reveal an interesting trend: while they peak modestly in the spring with an average of 1.6 m/s in April, they show a progressive decline during the summer and monsoon season. By the end of the year, December's winds provide a refreshing yet mild atmosphere, inviting both locals and visitors to enjoy the serene beauty of the Himalayan backdrop.

Average December Wind Speed in Kathmandu

The chart displays monthly wind speed patterns in Kathmandu, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.21.11.41.61.01.10.90.90.81.01.11.1 m/s
Data source: Kathmandu December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Kathmandu Compares to Other Months

Weather in Kathmandu varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kathmandu, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather between December and January, it's clear that both months experience mild temperatures, but January tends to be slightly cooler. December's temperatures range from a minimum of 2°C (35°F) to a maximum of 22°C (71°F), with an average of 11°C (52°F). In contrast, January has a minimum of 0°C (32°F) and an average of 9°C (49°F), while still reaching a similar maximum of 22°C (72°F). Precipitation increases in January, with 51 mm (2.0 in) falling over 6 days, compared to December's 29 mm (1.1 in) over 5 days. Additionally, January is characterized by lower humidity at 58%, compared to December's 71%. For more detailed weather information, you can visit Kathmandu weather in January.

In December, Kathmandu experiences mild temperatures with a minimum of 2°C (35°F) and an average high of around 22°C (71°F). The month brings relatively low precipitation, averaging 29 mm (1.1 in) over about 5 days, accompanied by humidity levels of 71%. In contrast, February sees a slight increase in average temperature, reaching 12°C (53°F) during the day and maxing out at 23°C (73°F). However, it also brings more rain, with total precipitation of 56 mm (2.2 in) spread over approximately 9 days, though the humidity drops to a more comfortable 53%. For more detailed insights into February weather, you can visit Kathmandu weather in February.

December and March present distinctly different weather patterns. In December, temperatures range from a chilly minimum of 2°C (35°F) to a pleasant maximum of 22°C (71°F), with an average of 11°C (52°F). The month experiences about 29 mm (1.1 in) of precipitation over five days and maintains a relatively high humidity level of 71%. In contrast, March enjoys warmer temperatures, with a minimum of 2°C (36°F) and a maximum of 27°C (81°F), averaging around 16°C (61°F). However, it sees significantly more rainfall, totaling 67 mm (2.6 in) over 12 days, and a much lower humidity of 32%. For a more detailed look at March conditions, check out Kathmandu weather in March.

In December, the weather is generally cooler, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 22°C (71°F), and an average of around 11°C (52°F). The month experiences moderate humidity at 71%, with about 29 mm (1.1 in) of precipitation over 5 days. In contrast, April brings warmer temperatures, with a minimum of 8°C (46°F) and a maximum that can reach up to 29°C (84°F), averaging 19°C (66°F). However, it also sees significantly more rainfall, totaling 114 mm (4.5 in) across 17 days, accompanied by much lower humidity at 25%. For more specific information, you can check out Kathmandu weather in April.

When comparing the weather in December and May, notable differences emerge. In December, temperatures range from a minimum of 2°C (35°F) to a maximum of 22°C (71°F), with an average temperature of 11°C (52°F). The month sees relatively low precipitation at 29 mm (1.1 in) over just 5 days, accompanied by a higher humidity level of 71%. In contrast, May experiences significantly warmer weather, with temperatures varying from a minimum of 12°C (53°F) to a high of 29°C (84°F), averaging 20°C (68°F). However, May is much wetter, receiving 265 mm (10.4 in) of rain over 25 days, while humidity drops to a more comfortable 46%. For more detailed insights on the weather conditions in May, you can check Kathmandu weather in May.

In December, the weather is cooler with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 22°C (71°F), and an average of 11°C (52°F). The month sees relatively low precipitation, totaling 29 mm (1.1 in) over 5 days, resulting in a humidity level of 71%. In contrast, June is significantly warmer, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 29°C (85°F) and an average of 22°C (72°F). However, June is also marked by heavy rainfall, accumulating 523 mm (20.6 in) over 29 days, and slightly higher humidity at 77%. For more detailed information, you can check Kathmandu weather in June.

December and July present stark contrasts in weather patterns. In December, temperatures range from a chilly minimum of 2°C (35°F) to a comfortable average of 11°C (52°F), with a maximum reaching 22°C (71°F). The month experiences relatively low precipitation, totaling 29 mm (1.1 in) over just 5 days and humidity levels at 71%. Conversely, July is much warmer, featuring minimum temperatures of 18°C (65°F) and averaging 22°C (72°F), peaking at a hot 29°C (85°F). However, it also brings significant rainfall, with a staggering 1037 mm (40.8 in) spread across 31 days and high humidity at 92%. This makes July a notably wet month compared to the drier December. For more details, you can check out Kathmandu weather in July.

The weather in December and August contrasts significantly in Kathmandu. December experiences mild temperatures, with averages around 11°C (52°F) and maximums reaching 22°C (71°F), accompanied by relatively low precipitation of 29 mm (1.1 in) over about 5 days, while humidity sits at a comfortable 71%. In stark contrast, August is much warmer, with average temperatures of 22°C (73°F) and highs soaring to 30°C (86°F). However, it is also the wettest month, receiving a staggering 784 mm (30.9 in) of rain across 30 days and high humidity levels at 92%. For more specific details on the weather in August, you can check Kathmandu weather in August.

When comparing the weather in December to that in September, it's clear that September is significantly warmer and wetter. December experiences cooler temperatures, ranging from a minimum of 2°C (35°F) to a maximum of 22°C (71°F), with an average of 11°C (52°F). In contrast, September boasts much higher temperatures, with lows around 17°C (62°F) and highs reaching 29°C (84°F), resulting in an average temperature of 22°C (71°F). Additionally, September sees a substantial amount of rainfall, totaling 408 mm (16.1 in) over 29 days, compared to December’s milder precipitation of just 29 mm (1.1 in) across 5 days. The humidity is also higher in September at 92%, compared to 71% in December. For more detailed information, visit Kathmandu weather in September.

In comparing the weather of December and October, notable contrasts emerge. December typically sees a cooler range of temperatures, with a minimum of 2°C (35°F) and an average of 11°C (52°F), while October offers warmer conditions, featuring a minimum of 9°C (48°F) and an average of 19°C (67°F). Precipitation also varies significantly, as December experiences only 29 mm (1.1 in) over 5 days, compared to October’s substantial 116 mm (4.5 in) across 16 days, making October much wetter. Additionally, humidity levels are higher in October at 87%, compared to December's 71%. For more details, you can visit Kathmandu weather in October.

In comparing the weather between November and December, December tends to be cooler with an average temperature of 11°C (52°F), while November is milder, averaging 15°C (58°F). The maximum temperatures in November reach up to 27°C (81°F), contrasting with December's maximum of 22°C (71°F). Precipitation is slightly higher in December with 29 mm (1.1 in) falling over five days compared to November's 19 mm (0.8 in) across six days. Humidity remains relatively consistent, being slightly higher in November at 76% compared to December's 71%. For more detailed information about November weather in Kathmandu, you can refer to this link: Kathmandu weather in November.

Compare Kathmandu's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Kathmandu

As December sets in, Kathmandu transforms with a noticeable chill in the air, presenting a refreshing contrast to the warmer months. The average temperature hovers around a cool 11°C, with daytime highs reaching a pleasant 22°C, while evenings invite warmer layers as the mercury dips to 2°C. This month also sees a notable reduction in precipitation, with just 29 mm falling across five days, offering a dry respite that many locals and travelers appreciate. The humid air, at 71%, adds a crispness to the atmosphere, making it a unique time to explore the city's vibrant culture without the sweltering heat of summer. For a deeper understanding of how Kathmandu's weather unfolds throughout the year, visit Kathmandu Climate.