Namche Bazaar weather in September

In September, Namche Bazaar sees average daytime highs of 9°C and overnight lows near 3°C, with 191 mm of precipitation across 24.4 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 10°C in the first days to 8°C by the end. The sky is clear or mostly clear about 8% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 36 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Namche Bazaar's 10th-clearest and 10th-windiest month. For the whole year in context, see Namche Bazaar's year-round climate.

Daytime high: 9°; 4th warmest
Overnight low: 3°; 9th coldest
Precipitation: 191 mm; 24.4 wet days
Daylight: 12 h 12 min; 5:48 AM – 5:57 PM
Cloud cover: 78%; 10th clearest
Wind: 3 km/h; 10th windiest
Solar energy: 4.34 kWh/m²
Travel score: 1.1; out of 10

Namche Bazaar is human settlement.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← August Namche Bazaar year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 10°C in the first days to 8°C by the end.

A typical September day in Namche Bazaar reaches about 9°C in the afternoon and slips back to 3°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 10°C. Set against its neighbours, September runs about 1°C cooler than August and about 3°C warmer than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	10	10	10	10	10	10	9	9	9	9	9	9	9	9	9	9	9	9	9	9	8	8	8	8	8	8	8	8	8	8
Avg low (°C)	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3	3	3	3	2	2	2	2	2	2	2	1	1	1	1

	Avg high (°C)	Avg low (°C)
1	10	4
2	10	4
3	10	4
4	10	4
5	10	4
6	10	4
7	9	4
8	9	4
9	9	4
10	9	4
11	9	4
12	9	3
13	9	3
14	9	3
15	9	3
16	9	3
17	9	3
18	9	3
19	9	3
20	9	2
21	8	2
22	8	2
23	8	2
24	8	2
25	8	2
26	8	2
27	8	1
28	8	1
29	8	1
30	8	1

How September really feels in Namche Bazaar

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Namche Bazaar weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-3° / -16°	21	2.9	3.1	10.4	0.0
Feb	-3° / -16°	28	3.4	3.9	11	0.0
Mar	-0° / -12°	30	6.5	5.3	11.8	0.0
Apr	4° / -6°	57	17.7	6.3	12.6	0.0
May	7° / -1°	107	23.6	3.1	13.4	0.6
Jun	10° / 4°	229	25.6	7	13.7	1.3
Jul	10° / 5°	443	30.9	11.6	13.6	1.2
Aug	10° / 5°	338	30.5	9.5	13	1.2
Sep	9° / 3°	191	24.4	6.4	12.2	1.1
Oct	6° / -3°	45	7.6	2.1	11.3	0.4
Nov	3° / -8°	10	1.8	1.4	10.6	0.0
Dec	-0° / -12°	11	1.1	1.3	10.3	0.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 79%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	5	6	6	7	8	8	9	10	11	11	12	13	14	14	15	16	17	20	21	22	25	27	30	33	35	38	41	45	48	51
Cloudier (%)	95	94	94	93	92	92	91	90	89	89	88	87	86	86	85	84	83	80	79	78	75	73	70	67	65	62	59	55	52	49

	Clearer (%)	Cloudier (%)
1	5	95
2	6	94
3	6	94
4	7	93
5	8	92
6	8	92
7	9	91
8	10	90
9	11	89
10	11	89
11	12	88
12	13	87
13	14	86
14	14	86
15	15	85
16	16	84
17	17	83
18	20	80
19	21	79
20	22	78
21	25	75
22	27	73
23	30	70
24	33	67
25	35	65
26	38	62
27	41	59
28	45	55
29	48	52
30	51	49

Chance of precipitation in September

Any precipitationSnow

Namche Bazaar gets around 191 mm of rain and snow over 24.4 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 81% and peaks near 94% on the wettest days, and about 6 days bring snow. The odds ease toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	94	94	93	93	92	92	92	91	91	90	90	89	89	88	87	86	84	83	81	79	76	74	71	68	66	63	60	57	54	52
Snow chance (%)	24	24	23	23	23	22	22	21	21	21	20	20	20	20	20	21	21	21	21	21	21	21	20	20	19	18	17	16	15	14

	Rain chance (%)	Snow chance (%)
1	94	24
2	94	24
3	93	23
4	93	23
5	92	23
6	92	22
7	92	22
8	91	21
9	91	21
10	90	21
11	90	20
12	89	20
13	89	20
14	88	20
15	87	20
16	86	21
17	84	21
18	83	21
19	81	21
20	79	21
21	76	21
22	74	21
23	71	20
24	68	20
25	66	19
26	63	18
27	60	17
28	57	16
29	54	15
30	52	14

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

Wind in September

Winds average 3 km/h in September.

Across September, daily wind ranges from about 3 km/h on the calmest days to 3 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	3	calm
2	3	calm
3	3	calm
4	3	calm
5	3	calm
6	3	calm
7	3	calm
8	3	calm
9	3	calm
10	3	calm
11	3	calm
12	3	calm
13	3	calm
14	3	calm
15	3	calm
16	3	calm
17	3	calm
18	3	calm
19	3	calm
20	3	calm
21	3	calm
22	3	calm
23	3	calm
24	3	calm
25	3	calm
26	3	calm
27	3	calm
28	3	calm
29	3	calm
30	3	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 36 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over September. Sunrise moves from 5:40 AM to 5:54 AM, and sunset from 6:15 PM to 5:40 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.6	12.6	12.5	12.5	12.5	12.4	12.4	12.4	12.4	12.3	12.3	12.3	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.0	12.0	12.0	12.0	11.9	11.9	11.9	11.9	11.8	11.8	11.8
Sunrise (AM)	5:40	5:41	5:41	5:42	5:42	5:43	5:43	5:44	5:44	5:45	5:45	5:46	5:46	5:47	5:47	5:48	5:48	5:49	5:49	5:50	5:50	5:50	5:51	5:51	5:52	5:52	5:53	5:53	5:54	5:54
Sunset (PM)	6:15	6:14	6:13	6:12	6:11	6:09	6:08	6:07	6:06	6:05	6:03	6:02	6:01	6:00	5:59	5:57	5:56	5:55	5:54	5:52	5:51	5:50	5:49	5:48	5:46	5:45	5:44	5:43	5:42	5:40

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.6	5:40	6:15
2	12.6	5:41	6:14
3	12.5	5:41	6:13
4	12.5	5:42	6:12
5	12.5	5:42	6:11
6	12.4	5:43	6:09
7	12.4	5:43	6:08
8	12.4	5:44	6:07
9	12.4	5:44	6:06
10	12.3	5:45	6:05
11	12.3	5:45	6:03
12	12.3	5:46	6:02
13	12.2	5:46	6:01
14	12.2	5:47	6:00
15	12.2	5:47	5:59
16	12.2	5:48	5:57
17	12.1	5:48	5:56
18	12.1	5:49	5:55
19	12.1	5:49	5:54
20	12.0	5:50	5:52
21	12.0	5:50	5:51
22	12.0	5:50	5:50
23	12.0	5:51	5:49
24	11.9	5:51	5:48
25	11.9	5:52	5:46
26	11.9	5:52	5:45
27	11.9	5:53	5:44
28	11.8	5:53	5:43
29	11.8	5:54	5:42
30	11.8	5:54	5:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.34 kWh/m².

For context, solar energy here swings from a low near 4.09 kWh/m² to a high of 7.12 kWh/m² in April across the year — September's 4.34 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	4.2	4.2	4.2	4.2	4.2	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.4	4.4	4.4	4.4	4.5	4.5	4.5	4.5	4.6	4.6	4.7	4.7
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.2	Bright
2	4.2	Bright
3	4.2	Bright
4	4.2	Bright
5	4.2	Bright
6	4.3	Bright
7	4.3	Bright
8	4.3	Bright
9	4.3	Bright
10	4.3	Bright
11	4.3	Bright
12	4.3	Bright
13	4.3	Bright
14	4.3	Bright
15	4.3	Bright
16	4.3	Bright
17	4.3	Bright
18	4.3	Bright
19	4.4	Bright
20	4.4	Bright
21	4.4	Bright
22	4.4	Bright
23	4.5	Bright
24	4.5	Bright
25	4.5	Bright
26	4.5	Bright
27	4.6	Bright
28	4.6	Bright
29	4.7	Bright
30	4.7	Bright

Planning a trip in September

Hazard calendar for Namche Bazaar

In seasonPeak

None of Namche Bazaar's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Namche Bazaar's monsoon runs June–August, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Namche Bazaar?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

1.1

Sightseeing

4th-best month of the year

—

Beach & pool

never really warm enough

September is a weaker month for outdoor sightseeing in Namche Bazaar.

What to pack for Namche Bazaar in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Namche Bazaar sees daytime highs around 9°C and nights near 3°C. Pack a warm layer and rain gear. About 24 days see rain.

a warm layerrain gear

UV index in Namche Bazaar in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Namche Bazaar peaks around July 13 at about 18 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	6	8	14	15	17	18	18	17	15	12	9	7
Level	High	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	High

	UV index (midday)	Level
Jan	6	High
Feb	8	Very high
Mar	14	Extreme
Apr	15	Extreme
May	17	Extreme
Jun	18	Extreme
Jul	18	Extreme
Aug	17	Extreme
Sep	15	Extreme
Oct	12	Extreme
Nov	9	Very high
Dec	7	High

Air quality in Namche Bazaar in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Namche Bazaar is worst in March — around 22 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (July, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	17	19	22	22	19	14	6	7	7	11	13	13
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Good	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	17	Moderate
Feb	19	Moderate
Mar	22	Moderate
Apr	22	Moderate
May	19	Moderate
Jun	14	Moderate
Jul	6	Good
Aug	7	Good
Sep	7	Good
Oct	11	Good
Nov	13	Moderate
Dec	13	Moderate

Location & terrain

Where is Namche Bazaar?

Namche Bazaar sits at 27.8°N, 86.7°E, 0 m above sea level, in Nepal. The nearest listed city is Chari̇̄koṭ, 67 km away.

Topography around Namche Bazaar

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Namche Bazaar.

Within 3 km, the terrain around Namche Bazaar has very significant variations in elevation — a maximum elevation change of 1,669 m around an average of 3,624 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 4,897 m; within 80 km, extreme variations in elevation — a maximum elevation change of 8,424 m.

The land around Namche Bazaar is covered by grassland (56%) and trees (40%) within 3 km, grassland (28%), snow and ice (26%) and bare terrain (23%) within 16 km, and trees (40%) and bare terrain (21%) within 80 km.

3 km

1,669 m

grassland 56%

16 km

4,897 m

grassland 28%

80 km

8,424 m

trees 40%

treesgrasslandcroplandbare terrainsnow and icewatermoss and lichen

← August Namche Bazaar year-round climate October →Best places to visit in September

September weather nearby: Chari̇̄koṭ 67 km · Khā̃dbāri̇̄ 68 km · Chautārā 98 km · Dhankutā 110 km · Triyuga 113 km · Dhulikhel 117 km · Nagarkot 118 km · Banepā 119 km

Nepal travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / D / M; 230 V · 50 Hz
Prices: ≈ 24% of US; price level, 2025
GDP per capita: $1,536; 2025
Happiness: 5.1 / 10; World Happiness, 2025
Safe drinking water: 16%; of population, 2024
Homicide rate: 2.1; per 100k, 2020
Road deaths: 16.3; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: Moderate; EF EPI 514
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Namche Bazaar (27.8053°, 86.7106°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	10	4
2	10	4
3	10	4
4	10	4
5	10	4
6	10	4
7	9	4
8	9	4
9	9	4
10	9	4
11	9	4
12	9	3
13	9	3
14	9	3
15	9	3
16	9	3
17	9	3
18	9	3
19	9	3
20	9	2
21	8	2
22	8	2
23	8	2
24	8	2
25	8	2
26	8	2
27	8	1
28	8	1
29	8	1
30	8	1

	Clearer (%)	Cloudier (%)
1	5	95
2	6	94
3	6	94
4	7	93
5	8	92
6	8	92
7	9	91
8	10	90
9	11	89
10	11	89
11	12	88
12	13	87
13	14	86
14	14	86
15	15	85
16	16	84
17	17	83
18	20	80
19	21	79
20	22	78
21	25	75
22	27	73
23	30	70
24	33	67
25	35	65
26	38	62
27	41	59
28	45	55
29	48	52
30	51	49

	Rain chance (%)	Snow chance (%)
1	94	24
2	94	24
3	93	23
4	93	23
5	92	23
6	92	22
7	92	22
8	91	21
9	91	21
10	90	21
11	90	20
12	89	20
13	89	20
14	88	20
15	87	20
16	86	21
17	84	21
18	83	21
19	81	21
20	79	21
21	76	21
22	74	21
23	71	20
24	68	20
25	66	19
26	63	18
27	60	17
28	57	16
29	54	15
30	52	14

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°C)	Avg low (°C)
1	10	4
2	10	4
3	10	4
4	10	4
5	10	4
6	10	4
7	9	4
8	9	4
9	9	4
10	9	4
11	9	4
12	9	3
13	9	3
14	9	3
15	9	3
16	9	3
17	9	3
18	9	3
19	9	3
20	9	2
21	8	2
22	8	2
23	8	2
24	8	2
25	8	2
26	8	2
27	8	1
28	8	1
29	8	1
30	8	1

	Clearer (%)	Cloudier (%)
1	5	95
2	6	94
3	6	94
4	7	93
5	8	92
6	8	92
7	9	91
8	10	90
9	11	89
10	11	89
11	12	88
12	13	87
13	14	86
14	14	86
15	15	85
16	16	84
17	17	83
18	20	80
19	21	79
20	22	78
21	25	75
22	27	73
23	30	70
24	33	67
25	35	65
26	38	62
27	41	59
28	45	55
29	48	52
30	51	49

	Rain chance (%)	Snow chance (%)
1	94	24
2	94	24
3	93	23
4	93	23
5	92	23
6	92	22
7	92	22
8	91	21
9	91	21
10	90	21
11	90	20
12	89	20
13	89	20
14	88	20
15	87	20
16	86	21
17	84	21
18	83	21
19	81	21
20	79	21
21	76	21
22	74	21
23	71	20
24	68	20
25	66	19
26	63	18
27	60	17
28	57	16
29	54	15
30	52	14

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°C)	Avg low (°C)
1	10	4
2	10	4
3	10	4
4	10	4
5	10	4
6	10	4
7	9	4
8	9	4
9	9	4
10	9	4
11	9	4
12	9	3
13	9	3
14	9	3
15	9	3
16	9	3
17	9	3
18	9	3
19	9	3
20	9	2
21	8	2
22	8	2
23	8	2
24	8	2
25	8	2
26	8	2
27	8	1
28	8	1
29	8	1
30	8	1

	Clearer (%)	Cloudier (%)
1	5	95
2	6	94
3	6	94
4	7	93
5	8	92
6	8	92
7	9	91
8	10	90
9	11	89
10	11	89
11	12	88
12	13	87
13	14	86
14	14	86
15	15	85
16	16	84
17	17	83
18	20	80
19	21	79
20	22	78
21	25	75
22	27	73
23	30	70
24	33	67
25	35	65
26	38	62
27	41	59
28	45	55
29	48	52
30	51	49

	Rain chance (%)	Snow chance (%)
1	94	24
2	94	24
3	93	23
4	93	23
5	92	23
6	92	22
7	92	22
8	91	21
9	91	21
10	90	21
11	90	20
12	89	20
13	89	20
14	88	20
15	87	20
16	86	21
17	84	21
18	83	21
19	81	21
20	79	21
21	76	21
22	74	21
23	71	20
24	68	20
25	66	19
26	63	18
27	60	17
28	57	16
29	54	15
30	52	14

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100