Last updated: August 31, 2025
August in Kathmandu, Nepal presents a warm yet humid atmosphere, with maximum temperatures reaching up to 30°C (86°F) and averaging around 22°C (73°F). The city's minimum temperature typically settles at 19°C (66°F), creating a comfortable warm environment ideal for monsoon adventures. However, this month is characterized by significant precipitation, with 784 mm (30.9 in) of rainfall over 30 days, resulting in lush green landscapes. The humidity levels soar to 92%, contributing to the vibrant, albeit damp, ambiance that defines Kathmandu during this time of year. Visitors should be prepared for frequent rain, yet the breathtaking scenery and cultural richness make August a unique experience.
In August, Kathmandu warms up slightly, with temperatures ranging from a minimum of 19°C (66°F) to a comfortable maximum of 30°C (86°F). The average temperature hovers around 22°C (73°F), making it one of the more temperate months of the year. This rise in warmth follows the consistent pattern established in the preceding summer months, where both June and July also maintain high daytime temperatures but with slightly lower minimums. As the city transitions from the intense rains of late summer, the climate becomes more inviting for outdoor activities, allowing visitors to experience the vibrant culture and stunning landscapes of the region amidst pleasantly warm weather.
August in Kathmandu marks a peak in the monsoon season, characterized by significant precipitation totaling 784 mm (30.9 in) over 30 days of rainfall. This substantial downpour follows the intensifying rains of July, which holds the record for the highest monthly precipitation at 1037 mm (40.8 in). The trend of increasing rainfall is evident as the city transitions from the milder showers of earlier months, like April’s 114 mm and May’s 265 mm. As the monsoon persists into September with 408 mm (16.1 in) of rain, the pattern of heavy rainfall during this season underscores the climatic challenges faced by the region. The consistent dampness not only shapes the landscape but also highlights Kathmandu's role in the natural rhythm of South Asia’s varied climates.
In August, Kathmandu experiences a significant spike in humidity, peaking at 92%, which mirrors the damp conditions felt throughout July. This trend of high humidity, characterized by values consistently above 90% during these summer months, creates a sweltering atmosphere that can be both stifling and invigorating. As the monsoon season continues to envelop the city, humidity levels remain elevated, making August one of the most humid months of the year. Following this peak, a gradual decline is expected in September, while October to December witnesses a gradual drop, restoring a more comfortable climate as the year draws to a close. Thus, while August showcases the height of humidity, it also signals the transition toward the refreshing crispness of fall in Kathmandu.
In August, Kathmandu experiences an extreme UV Index of 13, similar to the previous month, with a burn time of just 10 minutes. This trend of high UV exposure continues from the summer months, reflecting a peak in intensity that began in June. As the rainy season typically brings cloud cover, locals and visitors alike should remain vigilant, as the potential for sunburn still looms large despite occasional overcast skies. Following this month, September also upholds an extreme rating of 12, but slightly reduces the urgency with a burn time of 10 minutes. For more detailed insights on UV levels throughout the year, visit Kathmandu UV Index.
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August in Kathmandu experiences a delightful 246 hours of sunshine, marking a transition from the monsoon season's heavy rains. This month showcases a moderate amount of sunlight, slightly lower than July’s 227 hours but still a pleasant contrast to the clouds of earlier summer. As the lush greenery of the valley thrives, August provides a wonderful backdrop for outdoor adventures and cultural experiences. Looking at the broader trend, sunshine hours peak during the spring months of March to May, with April and May showcasing the year's brightest days. With the monsoon gradually waning, August sets the stage for a vibrant autumn, promising clear skies and a gradual return to the clearer, sunnier days of fall in September and October.
In August, Kathmandu, Nepal, experiences a remarkable dip in sunny weather, with only a 2% chance of sunshine gracing the city. This stark contrast from the sunnier months of April and March, which boast chances of 71% and 69%, respectively, highlights a distinct trend towards a cloudier and more humid environment as the monsoon season peaks. Following July's even grimmer 4% likelihood of sun, August continues this trend, leading to a significant decline in clear skies. As the city awaits the arrival of September, which offers a slight recovery to 14% sunny days, the overall pattern illustrates a notable shift to more overcast conditions right in the heart of the summer monsoon.
In August, Kathmandu enjoys a generous 13 hours of daylight, aligning with the peak of the monsoon season. This is consistent with the daylight duration trend from May through August, where the days are longest, providing ample sunlight for both residents and visitors alike. As the city transitions into September, the daylight begins to taper off, signaling that the longer days of summer are giving way to the shorter days of autumn. The gradual shift demonstrates a seasonal rhythm, where the sun's presence ebbs and flows, inviting an appreciation for the natural cycles that define Kathmandu's climate.
In Kathmandu, August brings a notable calmness to the air, with the average wind speed dropping to a gentle 0.9 m/s (2 mph). This pattern is consistent with the preceding months, where a gradual decrease in wind speed is observed, peaking in April before settling into the more tranquil summer conditions. As the monsoon sets in, the atmosphere tends to be more humid, contributing to a subdued breeze that mirrors the city's laid-back summer vibe. This continued mildness in August invites residents and visitors alike to savor the serene streets and lush landscapes of the valley, making it an ideal time for leisurely exploration and appreciation of the natural beauty surrounding the city.
Weather in Kathmandu varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Kathmandu, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present stark contrasts in weather conditions. In August, temperatures range from a minimum of 19°C (66°F) to a maximum of 30°C (86°F), accompanied by high humidity levels at 92%. This month is characterized by significant rainfall, averaging 784 mm (30.9 in) over 30 days, making it one of the wettest months of the year. In contrast, January sees much cooler temperatures, with a minimum of 0°C (32°F) and an average of 9°C (49°F), peaking at 22°C (72°F). Precipitation is minimal, totaling only 51 mm (2.0 in) across 6 days, and the humidity drops to 58%. For a more detailed look at January weather, check out Kathmandu weather in January.
August and February present stark contrasts in weather. In August, temperatures range from a minimum of 19°C (66°F) to a maximum of 30°C (86°F), accompanied by high humidity at 92%. This month experiences heavy rainfall, with 784 mm (30.9 in) of precipitation over 30 days, making it one of the wettest periods of the year. In contrast, February sees much cooler temperatures, with a low of 2°C (35°F) and a high of 23°C (73°F), along with significantly less precipitation—only 56 mm (2.2 in) over just 9 days. The humidity is also lower at 53%, creating a much drier atmosphere. For more information on February weather, visit Kathmandu weather in February.
The weather in August is significantly warmer and more humid compared to March. In August, temperatures range from a minimum of 19°C (66°F) to a maximum of 30°C (86°F), with an average of 22°C (73°F). This month also sees substantial rainfall, with 784 mm (30.9 in) of precipitation spread over 30 days, resulting in a high humidity level of 92%. In contrast, March experiences a cooler climate, with temperatures ranging from a low of 2°C (36°F) to a high of 27°C (81°F), averaging around 16°C (61°F). Precipitation is much lower in March, with only 67 mm (2.6 in) falling over 12 days and humidity at a comfortable 32%. For more detailed insights, you can check out Kathmandu weather in March.
The weather in August is significantly warmer and more humid compared to April. In August, temperatures range from a minimum of 19°C (66°F) to a maximum of 30°C (86°F), accompanied by high humidity levels of 92% and substantial rainfall of 784 mm (30.9 in) over 30 days. In contrast, April offers much cooler temperatures, with a minimum of 8°C (46°F) and an average of 19°C (66°F), and a maximum of 29°C (84°F). Additionally, April experiences far less precipitation, totaling only 114 mm (4.5 in) over 17 days, and a significantly lower humidity level of 25%. For more detailed insights on the weather patterns, you can visit Kathmandu weather in April.
When comparing the weather in August and May, there's a significant difference in temperature and humidity levels. August tends to be warmer, with average temperatures around 22°C (73°F), while May has a slightly cooler average of 20°C (68°F). However, August sees much higher precipitation, with 784 mm (30.9 in) spread over 30 days, compared to May's 265 mm (10.4 in) over 25 days. Additionally, the humidity in August is notably higher at 92%, which can make the air feel much heavier compared to the more comfortable humidity level of 46% in May. For more detailed information, you can check Kathmandu weather in May.
When comparing the weather in August to that in June, both months exhibit warm average temperatures, but August tends to be slightly warmer overall. In June, temperatures range from a minimum of 15°C (59°F) to a maximum of 29°C (85°F), with an average of 22°C (72°F). In contrast, August features a minimum of 19°C (66°F) and a similar maximum of 30°C (86°F), maintaining an average of 22°C (73°F).
Precipitation levels are significantly higher in August, totaling 784 mm (30.9 in) over 30 days, compared to June's 523 mm (20.6 in) over 29 days. Additionally, humidity levels are more pronounced in August at 92%, while June's humidity is a relatively lower 77%. These factors contribute to a more tropical feel in August, making it crucial to prepare for the wet conditions. For more insights on June weather specifically, visit Kathmandu weather in June.
In comparing the weather between July and August, we see that both months maintain similar temperature profiles, with average temperatures hovering around 22°C (72°F to 73°F). However, August experiences slightly warmer temperatures, reaching a maximum of 30°C (86°F) compared to July's high of 29°C (85°F). One notable difference is the amount of precipitation, with August receiving 784 mm (30.9 in) over 30 days, which is significantly lower than July's 1037 mm (40.8 in) over 31 days. Both months also maintain a high humidity level of 92%. For a closer look at July's conditions, you can refer to Kathmandu weather in July.
August and September weather in Kathmandu exhibit some similarities but also notable differences. Both months feature high humidity levels of 92%, contributing to a muggy atmosphere. In August, temperatures range from a minimum of 19°C (66°F) to a maximum of 30°C (86°F), with an average temperature of 22°C (73°F). However, this month sees significantly higher precipitation, with 784 mm (30.9 in) falling over 30 days. In contrast, September has slightly cooler temperatures, with a minimum of 17°C (62°F) and a maximum of 29°C (84°F), while the average remains the same at 22°C (71°F). The rainfall decreases considerably to 408 mm (16.1 in) over just 29 days, marking a shift toward drier conditions. For more details on September weather in Kathmandu, visit Kathmandu weather in September.
In August, the weather is characterized by warmer temperatures, with a minimum of 19°C (66°F) and an average of 22°C (73°F), reaching highs of 30°C (86°F). This month also sees significant rainfall, accumulating 784 mm (30.9 in) over 30 days, paired with high humidity at 92%. In contrast, October offers a cooler climate, where temperatures drop to a minimum of 9°C (48°F) and average around 19°C (67°F), peaking at 29°C (84°F). Rainfall is considerably less in October, with only 116 mm (4.5 in) over 16 days and slightly lower humidity at 87%. For more details, you can check Kathmandu weather in October.
August and November present contrasting weather patterns. In August, temperatures range from a minimum of 19°C (66°F) to a maximum of 30°C (86°F), with an average of 22°C (73°F). The month is marked by high humidity at 92% and significant rainfall, totaling 784 mm (30.9 in) across 30 days. In contrast, November experiences much cooler conditions, with temperatures dipping to a minimum of 6°C (42°F) and averaging 15°C (58°F), peaking at 27°C (81°F). Rainfall is minimal at only 19 mm (0.8 in) over 6 days, and humidity decreases to 76%. For a detailed look at the weather in November, you can refer to Kathmandu weather in November.
August and December weather in Kathmandu are strikingly different. In August, temperatures range from a minimum of 19°C (66°F) to a maximum of 30°C (86°F), with an average of 22°C (73°F). This month is characterized by high humidity at 92% and significant rainfall, totaling 784 mm (30.9 in) over 30 days. Conversely, December offers much cooler conditions, with temperatures dropping from a minimum of 2°C (35°F) to a maximum of 22°C (71°F), averaging 11°C (52°F). Precipitation is minimal during this month, with only 29 mm (1.1 in) over 5 days and a lower humidity level of 71%. For more details about Kathmandu's weather in December, you can visit Kathmandu weather in December.
August in Kathmandu brings a unique blend of warmth and humidity, setting it apart from other months. With temperatures reaching a maximum of 30°C (86°F) and an average of 22°C (73°F), the city experiences a vibrant atmosphere despite its heavy rainfall. The 784 mm (30.9 in) of precipitation across 30 days creates a lush backdrop, drenched in moisture with humidity levels soaring to 92%. This combination creates a distinct environment, making August one of the wettest months of the year and a dramatic contrast to the drier season. For more insights into the nuances of Kathmandu's weather patterns throughout the year, explore our detailed section on Kathmandu Climate.