Mohnyin weather in September

In September, Mohnyin sees average daytime highs of 29°C and overnight lows near 23°C, with 355 mm of rain across 28.1 wet days and about 12.2 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 4% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Mohnyin's 9th-clearest and 9th-windiest month. For the whole year in context, see Mohnyin's year-round climate.

Daytime high
29°
7th warmest
Overnight low
23°
9th coldest
Rainfall
355 mm
28.1 wet days
Daylight
12 h 06 min
5:55 AM – 6:03 PM
Cloud cover
85%
9th clearest
Wind
3 km/h
9th windiest
Solar energy
3.61 kWh/m²
Travel score
2.9
out of 10

Mohnyin is human settlement in Myanmar.

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 29°C through the month.

A typical September day in Mohnyin reaches about 29°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
62924
72924
82924
92924
102924
112924
122923
132923
142923
152923
162923
172923
182923
192923
202923
212923
222923
232923
242923
252923
262923
272923
282923
292923
302923

How September really feels in Mohnyin

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Mohnyin weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 12°162.810.68.8
Feb27° / 15°213.711.17.8
Mar31° / 18°366.311.85.3
Apr32° / 21°941312.63.6
May31° / 23°36525.413.23.0
Jun30° / 24°51629.313.52.6
Jul30° / 24°48030.613.42.6
Aug30° / 24°41430.312.92.6
Sep29° / 23°35528.112.22.9
Oct28° / 22°22822.811.44.3
Nov26° / 17°416.310.87.5
Dec24° / 14°122.510.58.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% 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 88%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1991
2991
3991
4991
5991
6991
7991
81090
91090
101090
11991
12991
13991
14991
151090
161090
171090
181090
191189
201189
211189
221288
231387
241387
251585
261585
271783
281981
292080
302179

Chance of precipitation in September

Any precipitation

Mohnyin gets around 355 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 96% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
196
296
396
495
595
695
795
895
995
1095
1195
1295
1395
1495
1595
1695
1795
1894
1994
2093
2193
2292
2392
2492
2591
2691
2791
2890
2990
3090

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 65% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
102179
202278
302377
402476
502476
602575
702674
802773
902872
1002971
1102971
1203070
1303169
1403268
1503367
1603367
1703466
1813564
1913663
2013762
2113861
2213960
2314059
2414158
2514257
2614455
2714653
2814851
2915049
3015247

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 30 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 42 minutes over September. Sunrise moves from 5:49 AM to 6:00 AM, and sunset from 6:19 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:496:19
212.55:496:18
312.55:506:17
412.45:506:16
512.45:506:15
612.45:516:14
712.45:516:13
812.35:526:12
912.35:526:11
1012.35:526:10
1112.35:536:09
1212.25:536:08
1312.25:536:06
1412.25:546:05
1512.25:546:04
1612.15:556:03
1712.15:556:02
1812.15:556:01
1912.15:566:00
2012.05:565:59
2112.05:565:58
2212.05:575:56
2312.05:575:55
2411.95:585:54
2511.95:585:53
2611.95:585:52
2711.95:595:51
2811.85:595:50
2911.86:005:49
3011.86:005:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.61 kWh/m².

For context, solar energy here swings from a low near 3.53 kWh/m² to a high of 5.94 kWh/m² in April across the year — September's 3.61 kWh/m² sits near the bottom.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.7Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.6Moderate
123.6Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.6Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.6Moderate
Planning a trip in September

Hazard calendar for Mohnyin

In seasonPeak

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

Mohnyin's monsoon runs May–September, 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 Mohnyin?

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

2.9
Sightseeing
9th-best month of the year
3.8
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Mohnyin.

What to pack for Mohnyin in September

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

In September, Mohnyin sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

UV index in Mohnyin 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 Mohnyin peaks around July 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 17UV 13Jan 10UV 5
UV index (midday)Level
Jan5Moderate
Feb6High
Mar8Very high
Apr7Very high
May11Extreme
Jun10Extreme
Jul13Extreme
Aug11Extreme
Sep10Extreme
Oct7Very high
Nov7High
Dec5High

Air quality in Mohnyin 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 Mohnyin is worst in April — around 54 µg/m³ PM2.5 (poor), about 7.1× the cleanest month (October, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateModerateGoodApr 1352 µg/m³Oct 228 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb22Moderate
Mar43Poor
Apr54Poor
May25Moderate
Jun17Moderate
Jul12Good
Aug13Moderate
Sep10Good
Oct8Good
Nov8Good
Dec10Good
Location & terrain

Where is Mohnyin?

Mohnyin sits at 24.8°N, 96.4°E, 216 m above sea level, in Myanmar. The nearest listed city is Hopin, 29 km away.

Topography around Mohnyin

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

Within 3 km, the terrain around Mohnyin has only modest variations in elevation — a maximum elevation change of 170 m around an average of 216 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,368 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,585 m.

The land around Mohnyin is covered by cropland (43%) and trees (40%) within 3 km, trees (75%) and cropland (22%) within 16 km, and trees (82%) within 80 km.

3 km
170 m
16 km
1,368 m
80 km
1,585 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Hopin 29 km · Katha 67 km · Kyauktan 73 km · Shwegu 75 km · Mogaung 82 km · Lakang 84 km · Hpākān 93 km · Bhamo 105 km

Myanmar travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / C / D / F / G / I
230 V · 50 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$1,489
2025
Happiness
4.3 / 10
World Happiness, 2025
Safe drinking water
60%
of population, 2024
Homicide rate
2.6
per 100k, 2023
Road deaths
20.4
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 444
Religion
Buddhist 88%Christian 6%Muslim 4%Animist 1%

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 Mohnyin (24.7782°, 96.3686°, elevation 216 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).