Last updated: January 18, 2025
Province 4 of Nepal showcases a diverse climate characterized by a combination of Koppen-Geiger climate classes: Cwb (Temperate with dry winters), Cwa (Temperate with dry winters and hot summers), and ET (Tundra). This region experiences a minimum temperature plunging to -27°C (-16°F) in December, while August sees the mercury soar to a maximum of 35°C (95°F). The average annual temperature hovers around 11°C (52°F), reflecting the unique climatic conditions that contribute to the province's rich biodiversity and distinct seasonal variations. These climatic details underscore the varying ecological zones present in Province 4, highlighting the influence of temperature dynamics on its environment and local livelihoods.
Temperature patterns in Province 4, Nepal, exhibit significant seasonal variability, characterized by cold winters and warm summers. January and February record the coldest temperatures, with minimums plummeting to -26°C (-15°F) and -25°C (-12°F), respectively, while average temperatures remain below 5°C (41°F). As spring approaches in March and April, temperatures gradually rise, reaching an average of 11°C (52°F) in April, with maximums climbing to 34°C (94°F). The onset of summer in May and June brings further warmth, with averages peaking at 17°C (62°F) and maximums consistently around 34°C (94°F). The warmest months, July and August, maintain average temperatures at 18°C (64°F) and maximums hitting 35°C (95°F), before a cooling trend sets in during September and October, where temperatures begin to taper off. By November and December, the province once again experiences colder conditions, with minimum temperatures sinking back down to -27°C (-16°F) in December, encapsulating a year marked by its pronounced seasonal fluctuations.
In Pokhara, temperatures range from a minimum of -4°C (24°F) in January to a maximum of 29°C (84°F) in July, making it a relatively mild location throughout the year; further details can be found at monthly temperatures in Pokhara. In contrast, Jomsom experiences much colder weather, with January temperatures plummeting to -25°C (-13°F) and peaking at 17°C (63°F) in August, as outlined in monthly temperatures in Jomsom. Lamjung shares a similar warm peak of 29°C (84°F) in August but has a more moderate minimum of -3°C (26°F) in January, which is detailed at monthly temperatures in Lamjung.
Precipitation in Province 4, Nepal, exhibits a distinct seasonal pattern, with a marked increase during the monsoon months. From January to April, rainfall gradually accumulates, starting from 79 mm (3.1 in) in January and peaking at 129 mm (5.1 in) in April. This early period experiences relatively fewer rainy days, ranging from 9 to 17 days, which contributes to a modest yet consistent increase in moisture. However, May marks the onset of the monsoon season, with precipitation skyrocketing to 241 mm (9.5 in) and rainy days increasing to 24, laying the groundwork for the following months.
The peak of precipitation occurs in July, with a staggering 881 mm (34.7 in) recorded over 30 days, embodying the heavy rainfall typical of this period. August follows closely with 723 mm (28.5 in), as the monsoon persists, before tapering off in September to 535 mm (21.1 in). October sees a sharp decline in rainfall to 102 mm (4.0 in), paving the way for the drier conditions of November and December, which record 52 mm (2.0 in) and 68 mm (2.7 in), respectively. This seasonal variability underscores the significant influence of the monsoon on the region's climate, impacting agriculture and water resources throughout the year.
In Province 4, Nepal, sunshine duration follows a clear seasonal trajectory, with a noticeable increase from winter to summer. The year begins with 244 hours of sunshine in January, which gradually expands as spring approaches, culminating in a peak of 354 hours in May. This trend reflects the lengthening days and increasing clarity of the atmosphere as the region transitions into warmer months. April and May stand out as particularly bright months, providing ideal conditions for outdoor activities and agriculture.
However, this sunny spell is followed by a dip during the monsoon season, particularly in July, when sunshine hours plummet to 232 hours due to increased cloud cover and rainfall. Despite the decrease, the duration begins to recover in August, with 245 hours of sunshine. As the year progresses into autumn, sunshine durations improve again, showcasing 324 hours in October and remaining fairly consistent through November and December with 300 and 297 hours, respectively. This cyclical pattern of sunshine duration highlights the distinct seasonal variations in Province 4, emphasizing the region's transition from bright, dry months to the overcast conditions typical of the monsoon season.
The UV Index in Province 4, Nepal, demonstrates significant seasonal variation, with particularly high levels during the spring and summer months. Starting at a UV Index of 9 in January, exposure levels are categorized as very high, suggesting that individuals can expect a burn time of just 15 minutes without protection. As February arrives, the UV index escalates to 11, entering the extreme exposure category, and this increasing trend continues into March, peaking at 16 and remaining in the extreme range through April and May, where it reaches an alarming 18. This period emphasizes the urgent need for sun protection, as any unprotected exposure could lead to rapid skin damage.
As the monsoon season sets in around June, the UV Index slightly recedes but stays high at 17. Throughout July and August, it remains stable in the extreme category, reflecting the strong sun's intensity despite increased cloud cover and rainfall. In September and October, the index drops to 16, signaling a gradual return to lower UV levels. By November, the index diminishes to 9, categorizing exposure again as very high before settling at 7 in December, where the burn time extends to 25 minutes. This annual cycle highlights the importance of awareness regarding UV exposure and the necessity for protective measures, particularly in the high UV months from February to October.
UV Risk Categories
In Province 4, Nepal, daylight duration exhibits a steady increase during the transition from winter to summer, reflecting the natural rhythm of the seasons. Starting with just 10 hours of daylight in January, the length gradually extends to 11 hours in February and remains steady through March. As spring progresses into April, daylight reaches 12 hours, culminating in a peak of 13 hours from May through July. This increase signifies the approach of summer, offering longer periods of sunlight that foster agricultural productivity and outdoor activities.
As summer gives way to autumn, daylight duration begins to decline. In August, despite maintaining 13 hours of sunlight, it gradually reduces to 12 hours by September. This downward trend continues into October, where daylight drops again to 11 hours. Finally, both November and December see light levels fall back to 10 hours, completing the cycle. This pattern underscores the importance of understanding daylight variations in Province 4, which influence daily life and seasonal practices throughout the year.
Baglung, Nepal experiences a diverse climate with cold winters and warm summers. January begins with minimum temperatures around -5°C (23°F) and averages of 7°C (46°F), steadily rising to a warm peak of 29°C (84°F) in May. The monsoon season from June to August brings heavy rainfall, peaking at 681 mm (26.8 in) in July, while the region enjoys ample sunshine, particularly from March to May. By October, temperatures cool down again, averaging 17°C (64°F) and experiencing a significant drop in precipitation. For more details, visit Baglung climate.
Jomsom, Nepal experiences a varied climate characterized by significant temperature fluctuations throughout the year. Winter months, such as January and February, can see minimum temperatures drop to -25°C (-13°F), while summer months like July and August have milder averages around 9°C (49°F). Precipitation peaks during the monsoon season, particularly in July with 370 mm (14.6 in), while sunshine hours are abundant in the spring, reaching up to 365 hours in May. For more detailed information, visit Jomsom climate.
The climate in Lamjung, Nepal, features a diverse range of temperatures throughout the year, with winter months experiencing lows of -3°C (26°F) in January and summer months reaching highs of 29°C (84°F) in July and August. Precipitation is significant, particularly during the monsoon season from June to September, with July recording the highest rainfall at 1545 mm (60.8 in). Sunshine is abundant in spring and early summer, peaking at 350 hours in May, while July sees the least sunshine at 228 hours. For more detailed information on the local climate, visit Lamjung climate.
Pokhara, Nepal experiences a diverse climate throughout the year, with temperatures ranging from a minimum of -4°C (24°F) in January to a maximum of 29°C (84°F) in the peak summer months of July and August. The region sees significant rainfall, especially during the monsoon season from June to September, with July receiving the most precipitation at 1424 mm (56.0 in). Sunshine hours vary, peaking at 347 hours in April and May, while the summer months receive considerably less sunlight. For more detailed information, visit Pokhara climate.
In conclusion, the climate of Province 4, Nepal, characterized by its distinct temperature patterns, varying precipitation levels, and significant UV exposure, plays a pivotal role in shaping the region's environmental and agricultural dynamics. The marked seasonal trends—from the cold winters with limited sunlight to the warm and bustling summers with extended daylight—highlight the unique ecological balance present in the area. Understanding these climatic factors not only aids in managing agricultural practices and environmental conservation but also emphasizes the necessity for sun protection and adaptation strategies during high UV periods. As Province 4 continues to navigate the impacts of climate variability, such insights remain crucial for sustainable development and fostering community resilience against climate change.