September weather forecastLukla, Nepal
September
Weather in September
Cruising into autumn, Lukla in September embraces a palpable shift in atmosphere as subtle hints of chill replace summer warmth. While rainfall decreases, the town now sees an escalation in snowfall, which impressively amounts to 465mm (18.31") at this time. Prepping for winter’s return, October will bring slightly cooler days, reduced rainfall and increased snowfall. The trend towards cooler temperatures begins in earnest but not at the expense of sunshine hours, allowing residents to have a fair share of daylight. Heightened humidity levels offer a slight reprieve from the incoming dry weather.Temperature
September brings an average high-temperature of a still frosty 6.7°C (44.1°F), showing a slight difference from August's 8°C (46.4°F). During the nights in September, the temperature averages to an icy 1.5°C (34.7°F).Humidity
The average relative humidity in September is 87%.Rainfall
In Lukla, in September, it is raining for 23.2 days, with typically 159mm (6.26") of accumulated precipitation. Throughout the year, there are 142.5 rainfall days, and 1206mm (47.48") of precipitation is accumulated.Snowfall
Months with snowfall are January through December. In September, it is snowing for 17.3 days. Throughout September, 465mm (18.31") of snow is accumulated. Throughout the year, there are 164.6 snowfall days, and 3156mm (124.25") of snow is accumulated.Daylight
In September, the average length of the day is 12h and 19min.On the first day of the month, sunrise is at 5:37 am and sunset at 6:18 pm. On the last day of September, sunrise is at 5:50 am and sunset at 5:45 pm +0545.
Sunshine
The average sunshine in September is 7.4h.UV index
The months with the highest UV index are January through April, June through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 2 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lukla, Nepal
- Average high temperature in September: 6.7°C
The warmest month (with the highest average high temperature) is July (8.3°C).
The month with the lowest average high temperature is January (-3.9°C).
- Average low temperature in September: 1.5°C
The month with the highest average low temperature is July (5°C).
The coldest month (with the lowest average low temperature) is January (-14.7°C).
Average pressure in September
Lukla, Nepal
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is January (1017.6mbar).
The month with the lowest atmospheric pressure is July (1006.3mbar).
Average wind speed in September
Lukla, Nepal
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is February (11km/h).
The calmest month (with the lowest average wind speed) is August (6.6km/h).
Average humidity in September
Lukla, Nepal
- Average humidity in September: 87%
The month with the highest relative humidity is July (92%).
The month with the lowest relative humidity is December (41%).
Average rainfall in September
Lukla, Nepal
- Average rainfall in September: 159mm
The wettest month (with the highest rainfall) is July (312mm).
The driest month (with the least rainfall) is November (8mm).
Average rainfall days in September
Lukla, Nepal
- Average rainfall days in September: 23.2 days
The month with the highest number of rainy days is August (31 days).
The month with the least rainy days is December (1.3 days).
Average snowfall in September
Lukla, Nepal
- Average snowfall in September: 465mm
The month with the highest snowfall is May (614mm).
The month with the least snowfall is November (51mm).
Average snowfall days in September
Lukla, Nepal
- Average snowfall days in September: 17.3 days
The month with the highest number of snowfall days is May (24.4 days).
The month with the least snowfall days is December (3.7 days).
Average daylight in September /
Average sunshine in September
Lukla, Nepal
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is April (Average sunshine: 10h and 54min).
The month with the least sunshine is July (Average sunshine: 5h and 12min).
Average sunshine days in September
Lukla, Nepal
- Average sunshine days in September: 0.2 days
The month with the most sunshine days is December (26.4 days).
The months with the least sunshine days are July and August (0 days).
Average UV index in September
Lukla, Nepal
- Average UV index in September: 2
The months with the highest UV index are January, February, March, April, June, July, August, September, October, November and December (UV index 2).
The month with the lowest UV index is May (UV index 1).
Average cloud cover in September
Lukla, Nepal
- Average cloud cover in September: 49
The month with the most cloud cover is July (Cloud cover 71).
The month with the least cloud cover is December (Cloud cover 7).
Average visibility in September
Lukla, Nepal
- Average visibility in September: 8km
The months with the highest visibility are January, February and December (10km).
The months with the lowest visibility are July and August (7km).
