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Contents
- The climate of Lahan
- The best time to visit Lahan
- The worst time to visit Lahan
- Spring weather in Lahan
- Summer weather in Lahan
- Autumn weather in Lahan
- Winter weather in Lahan
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Lahan
Lahan, Nepal falls squarely within the Humid subtropical climate category as classified by the Köppen climate system. This classification, also identified as 'Cwa', is distinguished by heavy summer monsoons and drier winters. Surrounded by rolling hills with the Chure ranges to the south, Lahan experiences significant shifts in climatic conditions throughout the year.
With summer temperatures that can peak at 38.2°C (100.8°F) in May, it is not uncommon for the mercury to remain above 30°C (86°F) from April to October. The winter months of December and January are much cooler, with average low temperatures of 13.3°C (55.9°F) to 11.1°C (52°F) respectively. Humidity in Lahan varies considerably throughout the year, with the lowest levels recorded in April at 30%, and the highest, 74%, in September.
Rainfall patterns reflect the monsoon character of the climate, with precipitation peaking sharply from June to September. Rainfall in July, the wettest month, averages 253mm (9.96"), significantly higher than in May's 55mm (2.17"). There are most rain-soaked days in July - 25.8 days to be exact.
The city enjoys an ample amount of sunshine, recording highest daily sunshine in May with 11.8 hours. Conversely, the shortest duration of daylight is predictably in December with 10.5 hours. The most overcast month is September, with a cloud percentage of 35, while in December it is down to 7.
Wind speeds in Lahan oscillate between 6.2km/h (3.9mph) in December to 11.9km/h (7.4mph) in May and July, while wind gusts can reach up to 17km/h (10.6mph) in May, providing some relief from the heat.
With summer temperatures that can peak at 38.2°C (100.8°F) in May, it is not uncommon for the mercury to remain above 30°C (86°F) from April to October. The winter months of December and January are much cooler, with average low temperatures of 13.3°C (55.9°F) to 11.1°C (52°F) respectively. Humidity in Lahan varies considerably throughout the year, with the lowest levels recorded in April at 30%, and the highest, 74%, in September.
Rainfall patterns reflect the monsoon character of the climate, with precipitation peaking sharply from June to September. Rainfall in July, the wettest month, averages 253mm (9.96"), significantly higher than in May's 55mm (2.17"). There are most rain-soaked days in July - 25.8 days to be exact.
The city enjoys an ample amount of sunshine, recording highest daily sunshine in May with 11.8 hours. Conversely, the shortest duration of daylight is predictably in December with 10.5 hours. The most overcast month is September, with a cloud percentage of 35, while in December it is down to 7.
Wind speeds in Lahan oscillate between 6.2km/h (3.9mph) in December to 11.9km/h (7.4mph) in May and July, while wind gusts can reach up to 17km/h (10.6mph) in May, providing some relief from the heat.
The best time to visit Lahan
Given the climate considerations, the most ideal time to visit Lahan falls between November and April. During these months, visitors can expect moderate temperatures, ranging between 24.5°C (76.1°F) in December to 37.3°C (99.1°F) in April, lower humidity levels and lesser rain - with February averaging the least at 4mm (0.16"). Additionally, daylight hours are considerable, between 10.8 hours in November to 12.8 hours in April, providing abundant time for outdoor activities.
The worst time to visit Lahan
The months of June to September constitute the most challenging period to visit. This period is characterised by high humidity percentages (above 70 percent) and torrential summer monsoon rains, with July being the most rainy month recording 253mm (9.96") of precipitation. Additionally, the high temperatures coupled with intense humidity can make outdoor activities uncomfortable.
Spring weather in Lahan
Lahan experiences spring between February and April. This season witnesses a steady rise in temperatures that range from 27.3°C (81.1°F) in February to 37.3°C (99.1°F) in April. Concurrently, the sunshine hours increase while rainfall remains low, reaching a high of 23mm (0.91") in April.
Summer weather in Lahan
Summer, which spans from May to July, brings intense heat, with temperatures climbing to 38.2°C (100.8°F) in May. The humidity this time of year starts increasing in May and reaches its peak in July at 71%. Coupled with high rainfall, July witnesses 253mm (9.96") together with 25.8 rainy days.
Autumn weather in Lahan
Autumn season, spanning from August to October sees a decrease in temperature, dropping to 30.5°C (86.9°F) by October. Rainfall begins to subside from 161mm (6.34") in August to 33mm (1.3") by October. The humidity remains high until September before it starts to ease in October.
Winter weather in Lahan
Winter descends on Lahan from November and lasts until January. During these months, the temperatures fall to a low of 11.1°C (52°F) in January. Humidity remains low, ranging between 55% to 59%. The rainfall is at its minimal too, with December and January both witnessing a mere 4mm (0.16") of precipitation. This is the time when the climate is at its most amiable.
Weather in January
A crisp start to the year, the weather in January in Lahan, Nepal is cool, dominated by clear conditions, gentle winds, and relatively high pressure systems. Winter clothes might be needed, especially for evenings when temperatures can go as low as 11.1°C (52°F). Weather in January »
Weather in February
The transition from winter to spring in February brings a slight increase in temperatures and humidity levels, making it comfortably warm. Compared to January, rainfall increases to 16mm (0.63") spread over three days. The weather is often bright as the sunshine duration and daylight hours continue to rise. Weather in February »
Weather in March
In March, the weather starts to hint at the approaching summer with temperatures reaching as high as 32.9°C (91.2°F). Precipitation remains relatively low, and the increase in heat is accompanied by a dip in humidity levels. The clear, blue skies of Lahan often unmatched, provide fantastic photographic opportunities. Weather in March »
Weather in April
April in Lahan, Nepal signifies the halt of spring and the commencement of the sweltering summer season. The heat is felt more with the temperature highs escalating and rainfall slightly increasing. With humidity at 30%, it's a dry heat that locals and visitors experience this month. Weather in April »
Weather in May
May is the time when summer's grip firmly establishes itself over Lahan, Nepal, and its surroundings. The weather is characterized by some of the hottest days, with rainfall levels going up to 55mm (2.17"). Compared to April, clouds become more frequent, marking the start of the monsoon season. Weather in May »
Weather in June
June sees a stark shift in the city's weather patterns. The rainfall, going up to 117mm (4.61") over 21.2 days, makes June the start of the rainy season. Despite this, Lahan, Nepal remains a city of sunshine, with extended daylight hours. Weather in June »
Weather in July
July, often known as the "heart of monsoon", offers the heaviest rainfall in Lahan, Nepal, with precipitation reaching a staggering 253mm (9.96"). Coinciding with this water-rich period, the temperatures, although high, give some respite from the intense heat felt in June. Weather in July »
Weather in August
August witnesses a slight decline in rainfall from its preceding month, and the temperatures stabilize. Because of the monsoon influence, cloud coverage is evident and direct sunlight is considerably reduced. The wind picks down slightly from July's patterns while keeping an almost steady course. Weather in August »
Weather in September
September brings a sense of respite to the people of Lahan, Nepal as it marks the end of the monsoon season. A noticeable dip in rainfall, down to 147mm (5.79"), signifies the start of the transition into autumn. Temperatures remain relatively high and humidity begins its descent. Weather in September »
Weather in October
October in Lahan, Nepal is a significant shift from the rainfall-heavy preceding months, with rainfall levels plummeting to just 33mm (1.3"). The dip in temperatures indicates the approach of the winter season. This period is characterized by moderate winds, clear skies, and high visibility, opening the city and its magnificent views to residents and visitors. Weather in October »
Weather in November
As winter knocks on the door, November witnesses a further decrease in temperature and rainfall in Lahan, Nepal. The city experiences just 2.3 days of rainfall for the entire month, making it one of the driest months of the year. Weather in November »
Weather in December
December marks the onset of the winter season in Lahan, Nepal, with temperatures continuing on a downward trend from November. The overall weather becomes cooler with the city recording a low of 13.3°C (55.9°F). Rainfall totals a mere 4mm (0.16") spread over 2.4 days, reinforcing the city's reputation as a winter wonderland. Weather in December »
Updated: Jun 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January stands out as Lahan's coldest month, with temperatures ranging between an average high of 23.5°C (74.3°F) and a low of 11.1°C (52°F).
How much does it rain?
Throughout the year, there are 141 rainfall days, and 828mm (32.6") of precipitation is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 7.4h of sunshine.
What are the months with the lowest UV index?
January and December, with an average maximum UV index of 5, are months with the lowest UV index.
What is the least humid month?
April is the least humid month, with an average relative humidity of 30%.
What is the month with the most sunshine?
April and May, with an average of 11.8h of sunshine, are months with the most sunshine.
What is the month with the highest UV index?
April, May and August, with an average maximum UV index of 8, are months with the highest UV index.
What is the hottest time of year?
The warmest period tends to be May, when average temperatures fluctuate between a high of 38.2°C (100.8°F) and a low of 26.8°C (80.2°F).
When are the longest days?
June has the longest days of the year, with an average of 13h and 48min of daylight.
What is the wettest month?
The month with the most rainfall is July, when the rain falls for 25.8 days and typically aggregates up to 253mm (9.96") of precipitation.
What is the most humid month?
With an average relative humidity of 74%, September is the most humid month.
What is the driest month?
November and December are months with the least rain when the rain falls for 2.3 days and typically aggregates up to 4mm (0.16") of rain.
What is the month with the shortest days?
With an average of 10h and 30min of daylight, December has the shortest days of the year.
Is there Daylight Saving Time (DST)?
Lahan does not utilize Daylight Saving Time (DST). +0545 timezone is used throughout the entire year.
Average temperature
Lahan, Nepal
The warmest month (with the highest average high temperature) is May (38.2°C).
The month with the lowest average high temperature is January (23.5°C).
The month with the highest average low temperature is June (28.3°C).
The coldest month (with the lowest average low temperature) is January (11.1°C).
Average pressure
Lahan, Nepal
- Average pressure in January:
1016.1mbar - Average pressure in February:
1014.2mbar - Average pressure in March:
1011.2mbar - Average pressure in April:
1007.8mbar - Average pressure in May:
1004.8mbar - Average pressure in June:
1001.2mbar
- Average pressure in July:
1001.2mbar - Average pressure in August:
1003mbar - Average pressure in September:
1006.3mbar - Average pressure in October:
1011.2mbar - Average pressure in November:
1014mbar - Average pressure in December:
1015.5mbar
The month with the highest atmospheric pressure is January (1016.1mbar).
The months with the lowest atmospheric pressure are June and July (1001.2mbar).
Average wind speed
Lahan, Nepal
- Average wind speed in January:
7.4km/h - Average wind speed in February:
8.9km/h - Average wind speed in March:
9.9km/h - Average wind speed in April:
11.5km/h - Average wind speed in May:
11.9km/h - Average wind speed in June:
11.5km/h
- Average wind speed in July:
11.9km/h - Average wind speed in August:
9.7km/h - Average wind speed in September:
8.3km/h - Average wind speed in October:
6.4km/h - Average wind speed in November:
6.2km/h - Average wind speed in December:
6.5km/h
The windiest months (with the highest average wind speed) are May and July (11.9km/h).
The calmest month (with the lowest average wind speed) is November (6.2km/h).
Average humidity
Lahan, Nepal
The month with the highest relative humidity is September (74%).
The month with the lowest relative humidity is April (30%).
Average rainfall
Lahan, Nepal
The wettest month (with the highest rainfall) is July (253mm).
The driest months (with the least rainfall) are November and December (4mm).
Average rainfall days
Lahan, Nepal
- Average rainfall days in January:
2.8 days - Average rainfall days in February:
3 days - Average rainfall days in March:
3.9 days - Average rainfall days in April:
8.2 days - Average rainfall days in May:
15.4 days - Average rainfall days in June:
21.2 days
- Average rainfall days in July:
25.8 days - Average rainfall days in August:
25 days - Average rainfall days in September:
23 days - Average rainfall days in October:
8 days - Average rainfall days in November:
2.3 days - Average rainfall days in December:
2.4 days
The month with the highest number of rainy days is July (25.8 days).
The month with the least rainy days is November (2.3 days).
Average daylight / Average sunshine
Lahan, Nepal
- Average daylight in January:
10h and 4min - Average daylight in February:
11h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 3min - Average daylight in June:
13h and 5min
- Average daylight in July:
13h and 4min - Average daylight in August:
13h and 1min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 3min - Average daylight in November:
10h and 5min - Average daylight in December:
10h and 3min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in January:
7h and 2min - Average sunshine in February:
7h and 4min - Average sunshine in March:
10h and 1min - Average sunshine in April:
11h and 5min - Average sunshine in May:
11h and 5min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
9h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 5min - Average sunshine in October:
8h and 1min - Average sunshine in November:
7h and 4min - Average sunshine in December:
7h and 3min
The months with the most sunshine are April and May (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 7h and 24min).
Average sunshine days
Lahan, Nepal
- Average sunshine days in January:
26.3 days - Average sunshine days in February:
24.5 days - Average sunshine days in March:
26.3 days - Average sunshine days in April:
19.8 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
5.9 days
- Average sunshine days in July:
3.7 days - Average sunshine days in August:
5 days - Average sunshine days in September:
6 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
26.8 days - Average sunshine days in December:
28.2 days
The month with the most sunshine days is December (28.2 days).
The month with the least sunshine days is July (3.7 days).
Average UV index
Lahan, Nepal
The months with the highest UV index are April, May and August (UV index 8).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover
Lahan, Nepal
The month with the most cloud cover is July (Cloud cover 48).
The month with the least cloud cover is November (Cloud cover 6).
Average visibility
Lahan, Nepal
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
Lahan, Nepal
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