September weather forecast
Namche Bazar, Nepal

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Buildings in the district of Khumbu in Namche Bazar, Nepal, looking towards the gorgeous Himalayas
Buildings in the district of Khumbu in Namche Bazar, Nepal, looking towards the gorgeous Himalayas

Weather in September

As September unfolds, Namche Bazar witnesses a gradual shift from summer towards autumn. With a significant drop in rainfall to 151mm (5.94"), the city starts shedding the summer's wetness. Concurrently, the temperatures slowly descend, with colder nights making their presence felt. Though autumn starts setting in, the days still hold onto the remnants of summer warmth. The dwindling humidity, coupled with decreasing cloud cover, brings back the sharper sunlight.

Temperature

The arrival of September in Namche Bazar is marked by an average high-temperature of a still frosty 6.7°C (44.1°F), bearing a close resemblance to August. September sees the temperature falling to a mean low of 1.5°C (34.7°F).

Humidity

In September, the average relative humidity is 87%.

Rainfall

In Namche Bazar, during September, the rain falls for 23.1 days and regularly aggregates up to 151mm (5.94") of precipitation. In Namche Bazar, during the entire year, the rain falls for 142.4 days and collects up to 1198mm (47.17") of precipitation.

Snowfall

January through December are months with snowfall. In September, it is snowing for 16.8 days. Throughout September, 387mm (15.24") of snow is accumulated. Throughout the year, there are 164.1 snowfall days, and 3078mm (121.18") of snow is accumulated.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September, sunrise is at 5:37 am and sunset at 6:19 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 5:45 pm +0545.

Sunshine

In Namche Bazar, the average sunshine in September is 7.6h.

UV index

January through April, June through December, with an average maximum UV index of 2, are months with the highest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 2 transforms into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.

Frequently asked questions

How cold does it get in September?

September temperatures vary between a high-temperature of 6.7°C (44.1°F) and a low-temperature of 1.5°C (34.7°F).

What is the average humidity in September?

In September, the average relative humidity in Namche Bazar is 87%.

How much does it rain in September?

In September, the rain falls for 23.1 days. Throughout September, 151mm (5.94") of precipitation is accumulated.

How much does it snow in September?

In September, in Namche Bazar, it is snowing for 16.8 days. Throughout September, 387mm (15.24") of snow is accumulated.

What is the average length of the day in September?

The average day length in September is 12h and 20min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 5:37 am and sunset at 6:19 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 5:45 pm +0545.

How many hours of sunshine does Namche Bazar have in September?

In September, the average sunshine duration is 7.6h.

When is the highest UV index?

The months with the highest UV index are January through April, June through December, with an average maximum UV index of 2.

What is the UV index reading in September?

In September, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Namche Bazar, Nepal

Average temperature in September - Namche Bazar, 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
Namche Bazar, Nepal

Average pressure in September - Namche Bazar, 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
Namche Bazar, Nepal

Average wind speed in September - Namche Bazar, Nepal
  • Average wind speed in September: 7km/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
Namche Bazar, Nepal

Average humidity in September - Namche Bazar, 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
Namche Bazar, Nepal

Average rainfall in September - Namche Bazar, Nepal
  • Average rainfall in September: 151mm

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
Namche Bazar, Nepal

Average rainfall days in September - Namche Bazar, Nepal
  • Average rainfall days in September: 23.1 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
Namche Bazar, Nepal

Average snowfall in September - Namche Bazar, Nepal
  • Average snowfall in September: 387mm

The month with the highest snowfall is May (614mm).
The month with the least snowfall is November (51mm).

Average snowfall days in September
Namche Bazar, Nepal

Average snowfall days in September - Namche Bazar, Nepal
  • Average snowfall days in September: 16.8 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
Namche Bazar, Nepal

Average daylight in September / Average sunshine in September - Namche Bazar, Nepal
  • Average daylight in September: 12h and 2min

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 4min

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
Namche Bazar, Nepal

Average sunshine days in September - Namche Bazar, 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
Namche Bazar, Nepal

Average UV index in September - Namche Bazar, 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
Namche Bazar, Nepal

Average cloud cover in September - Namche Bazar, Nepal
  • Average cloud cover in September: 48

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
Namche Bazar, Nepal

Average visibility in September - Namche Bazar, 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).

Namche Bazar, Nepal

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