Phuentsholing weather in September

In September, Phuentsholing sees average daytime highs of 27°C and overnight lows near 22°C, with 418 mm of rain across 26.1 wet days and about 12.2 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 13% of the time in September, and the air most often feels oppressive.

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 Phuentsholing's 9th-clearest and 11th-windiest month. For the whole year in context, see Phuentsholing's year-round climate.

Daytime high
27°
5th warmest
Overnight low
22°
9th coldest
Rainfall
418 mm
26.1 wet days
Daylight
12 h 12 min
5:52 AM – 6:01 PM
Cloud cover
76%
9th clearest
Wind
3 km/h
11th windiest
Solar energy
3.54 kWh/m²
Travel score
3.9
out of 10

Phuentsholing is border town in Southern Bhutan.

Density
1,773/km²
people per km²

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical September day in Phuentsholing reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12723
22723
32723
42723
52723
62723
72723
82723
92723
102723
112723
122722
132722
142722
152722
162722
172722
182722
192722
202722
212722
222722
232722
242722
252722
262722
272722
282722
292721
302721

Phuentsholing weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 10°132.510.57.7
Feb22° / 12°21411.17.9
Mar25° / 16°367.111.87.7
Apr27° / 19°8315.212.65.8
May27° / 21°25525.113.34.4
Jun27° / 23°7052913.73.4
Jul27° / 23°102130.913.53.2
Aug28° / 23°65730.712.93.2
Sep27° / 22°41826.112.23.9
Oct26° / 19°1078.911.47.2
Nov24° / 15°61.510.78.9
Dec21° / 11°61.310.38.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 75%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11189
21189
31288
41387
51486
61486
71585
81684
91783
101882
112080
122080
132179
142278
152377
162377
172476
182575
192674
202872
213070
223169
233367
243664
253763
264060
274258
284555
294753
305050

Chance of precipitation in September

Any precipitation

Phuentsholing gets around 418 mm of rain over 26.1 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 86% and peaks near 98% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
198
297
397
496
596
695
794
893
992
1091
1190
1289
1389
1488
1587
1687
1786
1885
1984
2084
2183
2282
2380
2479
2578
2676
2774
2872
2970
3067

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 83% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101981
202971
302971
402971
503961
603961
704960
805950
905950
1006940
1107930
1208920
1309910
14010900
15012880
16013870
17015850
18016840
19018820
20020800
21022780
22025750
23027730
24130690
25132670
26135640
27138610
28241570
29244540
30347500

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.

0246810151015202530
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm

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 5:45 AM to 5:58 AM, and sunset from 6:19 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:456:19
212.55:466:18
312.55:466:17
412.55:476:15
512.55:476:14
612.45:486:13
712.45:486:12
812.45:496:11
912.35:496:10
1012.35:496:09
1112.35:506:07
1212.35:506:06
1312.25:516:05
1412.25:516:04
1512.25:526:03
1612.25:526:01
1712.15:536:00
1812.15:535:59
1912.15:535:58
2012.05:545:57
2112.05:545:56
2212.05:555:54
2312.05:555:53
2411.95:565:52
2511.95:565:51
2611.95:575:50
2711.95:575:48
2811.85:585:47
2911.85:585:46
3011.85:585:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.54 kWh/m².

For context, solar energy here swings from a low near 3.17 kWh/m² to a high of 5.03 kWh/m² in April across the year — September's 3.54 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.6Moderate
123.6Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.7Moderate
303.7Moderate
Planning a trip in September

Hazard calendar for Phuentsholing

In seasonPeak

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

Phuentsholing'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 Phuentsholing?

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

3.9
Sightseeing
9th-best month of the year
4.1
Beach & pool
8th-best month of the year

September is a weaker month for outdoor sightseeing in Phuentsholing.

What to pack for Phuentsholing in September

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

In September, Phuentsholing sees daytime highs around 27°C and nights near 22°C. Pack light clothes and rain gear. About 26 days see rain.

light clothesrain gear

UV index in Phuentsholing in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Phuentsholing peaks around July 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 13 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highVery highHighModerateJul 17UV 12Jan 13UV 4
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar9Very high
Apr7Very high
May9Very high
Jun10Very high
Jul12Extreme
Aug10Very high
Sep10Extreme
Oct6High
Nov5High
Dec4Moderate

Air quality in Phuentsholing 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 Phuentsholing is worst in February — around 79 µg/m³ PM2.5 (unhealthy), about 4.1× the cleanest month (July, 20 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 1378 µg/m³Jul 1920 µg/m³
PM2.5 (µg/m³)Level
Jan71Unhealthy
Feb79Unhealthy
Mar65Unhealthy
Apr54Poor
May39Poor
Jun28Moderate
Jul20Moderate
Aug24Moderate
Sep29Moderate
Oct41Poor
Nov52Poor
Dec62Unhealthy
Location & terrain

Where is Phuentsholing?

Phuentsholing sits at 26.9°N, 89.4°E, 330 m above sea level, in Bhutan. The nearest listed city is Paro, 64 km away.

ParoThimphuTsirangPunakhaTrongsa

Topography around Phuentsholing

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

Within 3 km, the terrain around Phuentsholing has significant variations in elevation — a maximum elevation change of 594 m around an average of 290 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,634 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,184 m.

The land around Phuentsholing is covered by trees (62%) within 3 km, trees (87%) within 16 km, and trees (71%) and cropland (21%) within 80 km.

3 km
594 m
16 km
2,634 m
80 km
5,184 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Paro 64 km · Thimphu 73 km · Tsirang 75 km · Punakha 95 km · Darjeeling 113 km · Rangpur 124 km · Trongsa 132 km · Bhadrapur 133 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
Lamaistic Buddhist 75%Indian- and Nepali-influenced Hinduism 22%other 3%

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 Phuentsholing (26.8516°, 89.3884°, elevation 330 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).