Lhasa weather in September

In September, Lhasa sees average daytime highs of 14°C and overnight lows near 4°C, with 126 mm of precipitation across 22.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 15°C in the first days to 13°C by the end. The sky is clear or mostly clear about 19% 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 42 min by month's end. Set against the rest of the year, September is Lhasa's 10th-clearest and 11th-windiest month. For the whole year in context, see Lhasa's year-round climate.

Daytime high: 14°; 4th warmest
Overnight low: 4°; 9th coldest
Precipitation: 126 mm; 22.1 wet days
Daylight: 12 h 12 min; 7:45 AM – 7:55 PM
Cloud cover: 63%; 10th clearest
Wind: 4 km/h; 11th windiest
Solar energy: 5.63 kWh/m²
Travel score: 3.0; out of 10

Lhasa is prefecture-level city and capital of Tibet.

Air quality: Elevated; PM2.5 16.8 µg/m³ · 2018
Density: 4/km²; people per km²
Founded: ~633 CE

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

← August Lhasa 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 15°C in the first days to 13°C by the end.

A typical September day in Lhasa reaches about 14°C in the afternoon and slips back to 4°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 17°C. Set against its neighbours, September runs about 2°C cooler than August and about 5°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)	15	15	15	15	15	15	15	15	15	15	15	15	15	14	14	14	14	14	14	14	14	14	14	14	14	13	13	13	13	13
Avg low (°C)	6	6	6	6	6	6	6	6	5	5	5	5	5	5	5	4	4	4	4	4	4	3	3	3	3	3	2	2	2	2

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

How September really feels in Lhasa

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.

Lhasa weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-2° / -17°	10	4	4.9	10.3	0.0
Feb	1° / -13°	11	3.8	4.4	10.9	0.0
Mar	4° / -9°	24	7.7	7.5	11.8	0.1
Apr	9° / -5°	47	13.2	9.3	12.7	1.5
May	13° / 1°	72	17.5	6.3	13.5	3.1
Jun	17° / 6°	112	20	1	13.9	4.1
Jul	17° / 8°	168	24.5	0	13.7	3.5
Aug	16° / 7°	167	24.3	0.1	13.1	3.3
Sep	14° / 4°	126	22.1	1.1	12.2	3.0
Oct	9° / -4°	61	15.8	7.2	11.3	1.8
Nov	2° / -13°	19	5.5	5.3	10.5	0.0
Dec	-0° / -16°	10	3.1	3.6	10.1	0.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 25% of September, with mostly cloudy or overcast conditions the remaining 55%. 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 (%)	24	25	26	27	29	29	31	32	34	36	37	39	41	42	44	46	48	49	51	52	53	56	57	58	60	61	63	65	67	69
Cloudier (%)	76	75	74	73	71	71	69	68	66	64	63	61	59	58	56	54	52	51	49	48	47	44	43	42	40	39	37	35	33	31

	Clearer (%)	Cloudier (%)
1	24	76
2	25	75
3	26	74
4	27	73
5	29	71
6	29	71
7	31	69
8	32	68
9	34	66
10	36	64
11	37	63
12	39	61
13	41	59
14	42	58
15	44	56
16	46	54
17	48	52
18	49	51
19	51	49
20	52	48
21	53	47
22	56	44
23	57	43
24	58	42
25	60	40
26	61	39
27	63	37
28	65	35
29	67	33
30	69	31

Chance of precipitation in September

Any precipitationSnow

Lhasa gets around 126 mm of rain and snow over 22.1 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 73% and peaks near 78% on the wettest days, and about 1 day brings 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 (%)	78	78	78	78	78	78	78	78	78	77	77	76	76	75	75	74	73	73	72	71	71	70	69	69	68	67	67	66	65	65
Snow chance (%)	0	0	0	1	1	1	1	1	1	1	1	1	2	2	2	2	3	3	4	5	5	6	6	7	8	9	10	10	11	12

	Rain chance (%)	Snow chance (%)
1	78	0
2	78	0
3	78	0
4	78	1
5	78	1
6	78	1
7	78	1
8	78	1
9	78	1
10	77	1
11	77	1
12	76	1
13	76	2
14	75	2
15	75	2
16	74	2
17	73	3
18	73	3
19	72	4
20	71	5
21	71	5
22	70	6
23	69	6
24	69	7
25	68	8
26	67	9
27	67	10
28	66	10
29	65	11
30	65	12

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 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 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)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
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	4	calm
2	4	calm
3	4	calm
4	4	calm
5	4	calm
6	4	calm
7	4	calm
8	4	calm
9	4	calm
10	4	calm
11	4	calm
12	4	calm
13	4	calm
14	4	calm
15	4	calm
16	4	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 36 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over September. Sunrise moves from 7:36 AM to 7:52 AM, and sunset from 8:14 PM to 7:37 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	12.6	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	12.1	12.1	12.1	12.1	12.0	12.0	12.0	11.9	11.9	11.9	11.8	11.8	11.8	11.7
Sunrise (AM)	7:36	7:37	7:38	7:38	7:39	7:39	7:40	7:40	7:41	7:41	7:42	7:42	7:43	7:44	7:44	7:45	7:45	7:46	7:46	7:47	7:47	7:48	7:48	7:49	7:50	7:50	7:51	7:51	7:52	7:52
Sunset (PM)	8:14	8:13	8:12	8:10	8:09	8:08	8:07	8:05	8:04	8:03	8:02	8:00	7:59	7:58	7:56	7:55	7:54	7:53	7:51	7:50	7:49	7:47	7:46	7:45	7:44	7:42	7:41	7:40	7:39	7:37

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.6	7:36	8:14
2	12.6	7:37	8:13
3	12.6	7:38	8:12
4	12.5	7:38	8:10
5	12.5	7:39	8:09
6	12.5	7:39	8:08
7	12.4	7:40	8:07
8	12.4	7:40	8:05
9	12.4	7:41	8:04
10	12.4	7:41	8:03
11	12.3	7:42	8:02
12	12.3	7:42	8:00
13	12.3	7:43	7:59
14	12.2	7:44	7:58
15	12.2	7:44	7:56
16	12.2	7:45	7:55
17	12.1	7:45	7:54
18	12.1	7:46	7:53
19	12.1	7:46	7:51
20	12.1	7:47	7:50
21	12.0	7:47	7:49
22	12.0	7:48	7:47
23	12.0	7:48	7:46
24	11.9	7:49	7:45
25	11.9	7:50	7:44
26	11.9	7:50	7:42
27	11.8	7:51	7:41
28	11.8	7:51	7:40
29	11.8	7:52	7:39
30	11.7	7:52	7:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.63 kWh/m².

For context, solar energy here swings from a low near 4.34 kWh/m² to a high of 7.57 kWh/m² in May across the year — September's 5.63 kWh/m² falls in the middle.

	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)	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.7	5.7	5.7	5.7	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6
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	5.6	Bright
2	5.6	Bright
3	5.6	Bright
4	5.6	Bright
5	5.6	Bright
6	5.6	Bright
7	5.6	Bright
8	5.6	Bright
9	5.6	Bright
10	5.6	Bright
11	5.6	Bright
12	5.6	Bright
13	5.6	Bright
14	5.6	Bright
15	5.6	Bright
16	5.6	Bright
17	5.7	Bright
18	5.7	Bright
19	5.7	Bright
20	5.7	Bright
21	5.6	Bright
22	5.6	Bright
23	5.6	Bright
24	5.6	Bright
25	5.6	Bright
26	5.6	Bright
27	5.6	Bright
28	5.6	Bright
29	5.6	Bright
30	5.6	Bright

Planning a trip in September

Hazard calendar for Lhasa

In seasonPeak

In September, Lhasa sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Lhasa's rainy season runs June–September, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Lhasa?

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

3.0

Sightseeing

5th-best month of the year

—

Beach & pool

never really warm enough

September is a weaker month for outdoor sightseeing in Lhasa.

What to pack for Lhasa in September

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

In September, Lhasa sees daytime highs around 14°C and nights near 4°C. Pack rain gear. Worth having: a warm layer and sun protection. About 22 days see rain.

rain geara warm layersun protection

UV index in Lhasa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lhasa peaks around June 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 5 (moderate).

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)	5	7	12	12	14	16	15	14	13	10	7	5
Level	Moderate	High	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Moderate

	UV index (midday)	Level
Jan	5	Moderate
Feb	7	High
Mar	12	Extreme
Apr	12	Extreme
May	14	Extreme
Jun	16	Extreme
Jul	15	Extreme
Aug	14	Extreme
Sep	13	Extreme
Oct	10	Very high
Nov	7	Very high
Dec	5	Moderate

Air quality in Lhasa 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 Lhasa is worst in April — around 30 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (September, 11 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Lhasa's WHO annual average of 16.8 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	16	20	24	30	22	17	15	14	11	11	12	11
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Moderate	Good

	PM2.5 (µg/m³)	Level
Jan	16	Moderate
Feb	20	Moderate
Mar	24	Moderate
Apr	30	Moderate
May	22	Moderate
Jun	17	Moderate
Jul	15	Moderate
Aug	14	Moderate
Sep	11	Good
Oct	11	Good
Nov	12	Moderate
Dec	11	Good

Location & terrain

Where is Lhasa?

Lhasa sits at 29.6°N, 91.1°E, 3,651 m above sea level, in China. The nearest listed city is Jakar, 236 km away.

Topography around Lhasa

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

Within 3 km, the terrain around Lhasa has large variations in elevation — a maximum elevation change of 608 m around an average of 3,677 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,964 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,633 m.

The land around Lhasa is covered by artificial surfaces (43%) and grassland (32%) within 3 km, grassland (73%) within 16 km, and grassland (83%) within 80 km.

3 km

608 m

artificial surfaces 43%

16 km

1,964 m

grassland 73%

80 km

2,633 m

grassland 83%

treesgrasslandcroplandartificial surfacesbare terrainwatermoss and lichen

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

September weather nearby: Jakar 236 km · Trongsa 246 km · Punakha 258 km · Trashigang 261 km · Mongar 264 km · Thimphu 282 km · Paro 297 km · Tsirang 307 km

China travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type A / I; 220 V · 50 Hz
Prices: ≈ 47% of US; price level, 2025
GDP per capita: $13,862; 2025
Happiness: 6.1 / 10; World Happiness, 2025
Homicide rate: 0.5; per 100k, 2020
Road deaths: 17.4; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 464
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 Lhasa (29.65°, 91.1°, elevation 3,651 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	15	6
2	15	6
3	15	6
4	15	6
5	15	6
6	15	6
7	15	6
8	15	6
9	15	5
10	15	5
11	15	5
12	15	5
13	15	5
14	14	5
15	14	5
16	14	4
17	14	4
18	14	4
19	14	4
20	14	4
21	14	4
22	14	3
23	14	3
24	14	3
25	14	3
26	13	3
27	13	2
28	13	2
29	13	2
30	13	2

	Clearer (%)	Cloudier (%)
1	24	76
2	25	75
3	26	74
4	27	73
5	29	71
6	29	71
7	31	69
8	32	68
9	34	66
10	36	64
11	37	63
12	39	61
13	41	59
14	42	58
15	44	56
16	46	54
17	48	52
18	49	51
19	51	49
20	52	48
21	53	47
22	56	44
23	57	43
24	58	42
25	60	40
26	61	39
27	63	37
28	65	35
29	67	33
30	69	31

	Rain chance (%)	Snow chance (%)
1	78	0
2	78	0
3	78	0
4	78	1
5	78	1
6	78	1
7	78	1
8	78	1
9	78	1
10	77	1
11	77	1
12	76	1
13	76	2
14	75	2
15	75	2
16	74	2
17	73	3
18	73	3
19	72	4
20	71	5
21	71	5
22	70	6
23	69	6
24	69	7
25	68	8
26	67	9
27	67	10
28	66	10
29	65	11
30	65	12

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

	Clearer (%)	Cloudier (%)
1	24	76
2	25	75
3	26	74
4	27	73
5	29	71
6	29	71
7	31	69
8	32	68
9	34	66
10	36	64
11	37	63
12	39	61
13	41	59
14	42	58
15	44	56
16	46	54
17	48	52
18	49	51
19	51	49
20	52	48
21	53	47
22	56	44
23	57	43
24	58	42
25	60	40
26	61	39
27	63	37
28	65	35
29	67	33
30	69	31

	Rain chance (%)	Snow chance (%)
1	78	0
2	78	0
3	78	0
4	78	1
5	78	1
6	78	1
7	78	1
8	78	1
9	78	1
10	77	1
11	77	1
12	76	1
13	76	2
14	75	2
15	75	2
16	74	2
17	73	3
18	73	3
19	72	4
20	71	5
21	71	5
22	70	6
23	69	6
24	69	7
25	68	8
26	67	9
27	67	10
28	66	10
29	65	11
30	65	12

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

	Clearer (%)	Cloudier (%)
1	24	76
2	25	75
3	26	74
4	27	73
5	29	71
6	29	71
7	31	69
8	32	68
9	34	66
10	36	64
11	37	63
12	39	61
13	41	59
14	42	58
15	44	56
16	46	54
17	48	52
18	49	51
19	51	49
20	52	48
21	53	47
22	56	44
23	57	43
24	58	42
25	60	40
26	61	39
27	63	37
28	65	35
29	67	33
30	69	31

	Rain chance (%)	Snow chance (%)
1	78	0
2	78	0
3	78	0
4	78	1
5	78	1
6	78	1
7	78	1
8	78	1
9	78	1
10	77	1
11	77	1
12	76	1
13	76	2
14	75	2
15	75	2
16	74	2
17	73	3
18	73	3
19	72	4
20	71	5
21	71	5
22	70	6
23	69	6
24	69	7
25	68	8
26	67	9
27	67	10
28	66	10
29	65	11
30	65	12

	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