Tsirang weather in September

In September, Tsirang sees average daytime highs of 24°C and overnight lows near 18°C, with 542 mm of rain across 28.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 5% of the time in September, and the air most often feels muggy.

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 Tsirang's 9th-clearest and 10th-windiest month. For the whole year in context, see Tsirang's year-round climate.

Daytime high: 24°; 4th warmest
Overnight low: 18°; 9th coldest
Rainfall: 542 mm; 28.1 wet days
Daylight: 12 h 12 min; 5:49 AM – 5:59 PM
Cloud cover: 83%; 9th clearest
Wind: 3 km/h; 10th windiest
Solar energy: 3.41 kWh/m²
Travel score: 3.8; out of 10

← August Tsirang 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

Day-to-day highs hold fairly steady near 24°C through the month.

A typical September day in Tsirang reaches about 24°C in the afternoon and slips back to 18°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 26°C. Set against its neighbours, September runs on par with August and about 2°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)	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	23	23	23	23	23	23	23	23	23	23	23	23
Avg low (°C)	19	19	19	19	19	19	19	19	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	17	17	17	17	17	17

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

Tsirang 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	14° / 6°	225	21.5	1.8	10.5	3.0
Feb	16° / 8°	255	23.1	0.7	11	3.1
Mar	19° / 11°	290	26.6	0	11.8	3.8
Apr	21° / 13°	346	27.8	0	12.6	3.7
May	23° / 16°	471	30.1	0	13.3	3.6
Jun	24° / 19°	799	29.8	0	13.7	3.5
Jul	24° / 19°	1040	30.8	0	13.5	3.4
Aug	24° / 19°	677	30.5	0	13	3.5
Sep	24° / 18°	542	28.1	0	12.2	3.8
Oct	22° / 14°	260	22.3	0	11.4	4.9
Nov	19° / 10°	132	14.8	0	10.7	5.5
Dec	16° / 7°	141	16.4	0.2	10.3	4.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 8% of September, with mostly cloudy or overcast conditions the remaining 87%. 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 (%)	8	8	8	8	8	9	10	10	10	10	12	12	12	12	12	12	12	13	13	13	13	13	14	15	17	17	18	22	23	25
Cloudier (%)	92	92	92	92	92	91	90	90	90	90	88	88	88	88	88	88	88	87	87	87	87	87	86	85	83	83	82	78	77	75

	Clearer (%)	Cloudier (%)
1	8	92
2	8	92
3	8	92
4	8	92
5	8	92
6	9	91
7	10	90
8	10	90
9	10	90
10	10	90
11	12	88
12	12	88
13	12	88
14	12	88
15	12	88
16	12	88
17	12	88
18	13	87
19	13	87
20	13	87
21	13	87
22	13	87
23	14	86
24	15	85
25	17	83
26	17	83
27	18	82
28	22	78
29	23	77
30	25	75

Chance of precipitation in September

Any precipitation

Tsirang gets around 542 mm of rain over 28.1 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 94% and peaks near 97% on the wettest days.

	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 (%)	97	97	97	96	96	96	95	95	95	94	94	94	93	93	93	93	93	93	93	93	93	93	93	92	92	92	92	92	91	91

	Rain chance (%)
1	97
2	97
3	97
4	96
5	96
6	96
7	95
8	95
9	95
10	94
11	94
12	94
13	93
14	93
15	93
16	93
17	93
18	93
19	93
20	93
21	93
22	93
23	93
24	92
25	92
26	92
27	92
28	92
29	91
30	91

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 66% of them.

	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
Comfortable (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	1	2	2	2	3	3	4	5	6
Humid (%)	12	12	13	14	15	17	18	20	22	23	25	26	28	29	30	32	34	35	37	39	41	43	45	47	49	51	54	56	59	61
Muggy (%)	88	88	87	86	85	83	82	80	78	77	75	74	72	70	69	67	65	64	62	60	58	56	53	51	48	46	43	40	36	33

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	12	88
2	0	12	88
3	0	13	87
4	0	14	86
5	0	15	85
6	0	17	83
7	0	18	82
8	0	20	80
9	0	22	78
10	0	23	77
11	0	25	75
12	0	26	74
13	0	28	72
14	1	29	70
15	1	30	69
16	1	32	67
17	1	34	65
18	1	35	64
19	1	37	62
20	1	39	60
21	1	41	58
22	1	43	56
23	2	45	53
24	2	47	51
25	2	49	48
26	3	51	46
27	3	54	43
28	4	56	40
29	5	59	36
30	6	61	33

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 5:42 AM to 5:56 AM, and sunset from 6:16 PM to 5:42 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	12.5	12.5	12.5	12.5	12.4	12.4	12.4	12.3	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)	5:42	5:43	5:43	5:44	5:44	5:45	5:45	5:46	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	5:55	5:55	5:56
Sunset (PM)	6:16	6:15	6:14	6:13	6:12	6:10	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	5:53	5:51	5:50	5:49	5:48	5:47	5:46	5:44	5:43	5:42

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

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.41 kWh/m².

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 4.36 kWh/m² in April across the year — September's 3.41 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)	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	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	3.4	3.4	3.4	3.4
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	3.5	Moderate
2	3.5	Moderate
3	3.5	Moderate
4	3.5	Moderate
5	3.5	Moderate
6	3.5	Moderate
7	3.5	Moderate
8	3.5	Moderate
9	3.5	Moderate
10	3.5	Moderate
11	3.5	Moderate
12	3.5	Moderate
13	3.5	Moderate
14	3.4	Moderate
15	3.4	Moderate
16	3.4	Moderate
17	3.4	Moderate
18	3.4	Moderate
19	3.4	Moderate
20	3.4	Moderate
21	3.4	Moderate
22	3.4	Moderate
23	3.4	Moderate
24	3.4	Moderate
25	3.4	Moderate
26	3.4	Moderate
27	3.4	Moderate
28	3.4	Moderate
29	3.4	Moderate
30	3.4	Moderate

Planning a trip in September

Hazard calendar for Tsirang

In seasonPeak

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

Tsirang's rainy season runs May–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 Tsirang?

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

3.8

Sightseeing

4th-best month of the year

3.1

Beach & pool

2nd-best month of the year

September is a weaker month for outdoor sightseeing in Tsirang.

What to pack for Tsirang in September

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

In September, Tsirang sees daytime highs around 24°C and nights near 18°C. Pack rain gear. Worth having: light clothes. About 28 days see rain.

rain gearlight clothes

UV index in Tsirang in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tsirang peaks around July 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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	6	9	10	11	13	14	12	12	7	6	5
Level	Moderate	High	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	High	Moderate

	UV index (midday)	Level
Jan	5	Moderate
Feb	6	High
Mar	9	Very high
Apr	10	Very high
May	11	Extreme
Jun	13	Extreme
Jul	14	Extreme
Aug	12	Extreme
Sep	12	Extreme
Oct	7	Very high
Nov	6	High
Dec	5	Moderate

Air quality in Tsirang 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 Tsirang is worst in February — around 59 µg/m³ PM2.5 (unhealthy), about 4.0× the cleanest month (July, 15 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)	44	59	57	48	30	22	15	18	19	25	31	34
Level	Poor	Unhealthy	Unhealthy	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	44	Poor
Feb	59	Unhealthy
Mar	57	Unhealthy
Apr	48	Poor
May	30	Moderate
Jun	22	Moderate
Jul	15	Moderate
Aug	18	Moderate
Sep	19	Moderate
Oct	25	Moderate
Nov	31	Moderate
Dec	34	Moderate

Location & terrain

Where is Tsirang?

Tsirang sits at 27.0°N, 90.1°E, 1,410 m above sea level, in Bhutan. The nearest listed city is Trongsa, 66 km away.

Topography around Tsirang

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

Within 3 km, the terrain around Tsirang has very significant variations in elevation — a maximum elevation change of 1,207 m around an average of 1,133 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,730 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,038 m.

The land around Tsirang is covered by trees (81%) within 3 km, trees (96%) within 16 km, and trees (83%) within 80 km.

3 km

1,207 m

trees 81%

16 km

2,730 m

trees 96%

80 km

5,038 m

trees 83%

treesgrasslandcroplandartificial surfacesbare terrain

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

September weather nearby: Trongsa 66 km · Punakha 68 km · Thimphu 69 km · Phuentsholing 75 km · Paro 84 km · Jakar 85 km · Mongar 114 km · Samdrup Jongkhar 139 km

Bhutan travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type C / D / F / G / M; 230 V · 50 Hz
Prices: ≈ 23% of US; price level, 2025
GDP per capita: $4,493; 2025
Happiness: 5.1 / 10; World Happiness, 2018
Safe drinking water: 66%; of population, 2024
Homicide rate: 2.5; per 100k, 2020
Road deaths: 16.2; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: Low; EF EPI 473
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 Tsirang (27.0219°, 90.1229°, elevation 1,410 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	24	19
2	24	19
3	24	19
4	24	19
5	24	19
6	24	19
7	24	19
8	24	19
9	24	18
10	24	18
11	24	18
12	24	18
13	24	18
14	24	18
15	24	18
16	24	18
17	24	18
18	24	18
19	23	18
20	23	18
21	23	18
22	23	18
23	23	18
24	23	18
25	23	17
26	23	17
27	23	17
28	23	17
29	23	17
30	23	17

	Clearer (%)	Cloudier (%)
1	8	92
2	8	92
3	8	92
4	8	92
5	8	92
6	9	91
7	10	90
8	10	90
9	10	90
10	10	90
11	12	88
12	12	88
13	12	88
14	12	88
15	12	88
16	12	88
17	12	88
18	13	87
19	13	87
20	13	87
21	13	87
22	13	87
23	14	86
24	15	85
25	17	83
26	17	83
27	18	82
28	22	78
29	23	77
30	25	75

	Rain chance (%)
1	97
2	97
3	97
4	96
5	96
6	96
7	95
8	95
9	95
10	94
11	94
12	94
13	93
14	93
15	93
16	93
17	93
18	93
19	93
20	93
21	93
22	93
23	93
24	92
25	92
26	92
27	92
28	92
29	91
30	91

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	12	88
2	0	12	88
3	0	13	87
4	0	14	86
5	0	15	85
6	0	17	83
7	0	18	82
8	0	20	80
9	0	22	78
10	0	23	77
11	0	25	75
12	0	26	74
13	0	28	72
14	1	29	70
15	1	30	69
16	1	32	67
17	1	34	65
18	1	35	64
19	1	37	62
20	1	39	60
21	1	41	58
22	1	43	56
23	2	45	53
24	2	47	51
25	2	49	48
26	3	51	46
27	3	54	43
28	4	56	40
29	5	59	36
30	6	61	33

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

	Clearer (%)	Cloudier (%)
1	8	92
2	8	92
3	8	92
4	8	92
5	8	92
6	9	91
7	10	90
8	10	90
9	10	90
10	10	90
11	12	88
12	12	88
13	12	88
14	12	88
15	12	88
16	12	88
17	12	88
18	13	87
19	13	87
20	13	87
21	13	87
22	13	87
23	14	86
24	15	85
25	17	83
26	17	83
27	18	82
28	22	78
29	23	77
30	25	75

	Rain chance (%)
1	97
2	97
3	97
4	96
5	96
6	96
7	95
8	95
9	95
10	94
11	94
12	94
13	93
14	93
15	93
16	93
17	93
18	93
19	93
20	93
21	93
22	93
23	93
24	92
25	92
26	92
27	92
28	92
29	91
30	91

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	12	88
2	0	12	88
3	0	13	87
4	0	14	86
5	0	15	85
6	0	17	83
7	0	18	82
8	0	20	80
9	0	22	78
10	0	23	77
11	0	25	75
12	0	26	74
13	0	28	72
14	1	29	70
15	1	30	69
16	1	32	67
17	1	34	65
18	1	35	64
19	1	37	62
20	1	39	60
21	1	41	58
22	1	43	56
23	2	45	53
24	2	47	51
25	2	49	48
26	3	51	46
27	3	54	43
28	4	56	40
29	5	59	36
30	6	61	33

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

	Clearer (%)	Cloudier (%)
1	8	92
2	8	92
3	8	92
4	8	92
5	8	92
6	9	91
7	10	90
8	10	90
9	10	90
10	10	90
11	12	88
12	12	88
13	12	88
14	12	88
15	12	88
16	12	88
17	12	88
18	13	87
19	13	87
20	13	87
21	13	87
22	13	87
23	14	86
24	15	85
25	17	83
26	17	83
27	18	82
28	22	78
29	23	77
30	25	75

	Rain chance (%)
1	97
2	97
3	97
4	96
5	96
6	96
7	95
8	95
9	95
10	94
11	94
12	94
13	93
14	93
15	93
16	93
17	93
18	93
19	93
20	93
21	93
22	93
23	93
24	92
25	92
26	92
27	92
28	92
29	91
30	91

	Comfortable (%)	Humid (%)	Muggy (%)
1	0	12	88
2	0	12	88
3	0	13	87
4	0	14	86
5	0	15	85
6	0	17	83
7	0	18	82
8	0	20	80
9	0	22	78
10	0	23	77
11	0	25	75
12	0	26	74
13	0	28	72
14	1	29	70
15	1	30	69
16	1	32	67
17	1	34	65
18	1	35	64
19	1	37	62
20	1	39	60
21	1	41	58
22	1	43	56
23	2	45	53
24	2	47	51
25	2	49	48
26	3	51	46
27	3	54	43
28	4	56	40
29	5	59	36
30	6	61	33