Hpa-An weather in September

In September, Hpa-An sees average daytime highs of 31°C and overnight lows near 25°C, with 527 mm of rain across 29.4 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 30°C in the first days to 32°C by the end. The sky is clear or mostly clear about 2% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Hpa-An's 9th-clearest and 9th-windiest month. For the whole year in context, see Hpa-An's year-round climate.

Daytime high
31°
9th warmest
Overnight low
25°
9th coldest
Rainfall
527 mm
29.4 wet days
Daylight
12 h 06 min
5:51 AM – 5:57 PM
Cloud cover
89%
9th clearest
Wind
5 km/h
9th windiest
Solar energy
3.62 kWh/m²
Travel score
2.3
out of 10

Hpa-An is city in Kayin State, Myanmar.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 30°C in the first days to 32°C by the end.

A typical September day in Hpa-An reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233225
243225
253225
263225
273225
283225
293225
303225

How September really feels in Hpa-An

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
15 feel dangerously hot (≥ 39°C)
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.

Hpa-An weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 18°81.111.14.6
Feb35° / 19°40.511.43.2
Mar37° / 23°203.311.91.9
Apr37° / 26°679.912.41.4
May33° / 25°40327.212.82.0
Jun30° / 25°76229.9132.4
Jul30° / 25°90330.912.92.5
Aug30° / 25°88930.912.62.5
Sep31° / 25°52729.412.12.3
Oct33° / 25°19020.511.62.8
Nov33° / 23°324.711.23.9
Dec33° / 20°90.9114.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 5% of September, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1298
2298
3298
4298
5298
6298
7298
8298
9496
10496
11496
12496
13496
14595
15595
16595
17694
18793
19892
20892
21991
22991
231189
241189
251288
261387
271486
281684
291783
301882

Chance of precipitation in September

Any precipitation

Hpa-An gets around 527 mm of rain over 29.4 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 98% and peaks near 100% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
1100
2100
3100
4100
5100
6100
7100
8100
999
1099
1199
1299
1399
1499
1598
1698
1798
1898
1997
2097
2197
2297
2396
2496
2595
2694
2794
2893
2992
3091

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1298
2298
3298
4298
5298
6298
7298
8298
9298
10298
11298
12298
13298
14298
15298
16298
17298
18298
19199
20199
21199
22199
23199
24199
25199
26199
27199
28199
29199
30199

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 5:49 AM to 5:53 AM, and sunset from 6:09 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:496:09
212.35:496:08
312.35:496:08
412.35:506:07
512.35:506:06
612.35:506:05
712.25:506:04
812.25:506:03
912.25:506:03
1012.25:506:02
1112.25:506:01
1212.25:516:00
1312.15:515:59
1412.15:515:58
1512.15:515:57
1612.15:515:57
1712.15:515:56
1812.15:515:55
1912.05:515:54
2012.05:515:53
2112.05:525:52
2212.05:525:51
2312.05:525:51
2412.05:525:50
2511.95:525:49
2611.95:525:48
2711.95:525:47
2811.95:535:46
2911.95:535:46
3011.95:535:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.62 kWh/m².

For context, solar energy here swings from a low near 2.66 kWh/m² to a high of 6.39 kWh/m² in March across the year — September's 3.62 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.1Moderate
43.2Moderate
53.2Moderate
63.2Moderate
73.3Moderate
83.3Moderate
93.3Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.5Moderate
143.5Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.7Moderate
193.8Moderate
203.8Moderate
213.9Moderate
223.9Moderate
234.0Moderate
244.0Bright
254.1Bright
264.1Bright
274.2Bright
284.2Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Hpa-An

In seasonPeak

In September, Hpa-An sits inside its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.

Hpa-An sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Hpa-An's monsoon runs June–September, when most of the year's rain falls.

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

Is September a good time to visit Hpa-An?

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

2.3
Sightseeing
9th-best month of the year
3.5
Beach & pool
10th-best month of the year

September is a weaker month for outdoor sightseeing in Hpa-An.

What to pack for Hpa-An in September

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

In September, Hpa-An sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

Sea temperature near Hpa-An in September

The nearest coast averages about 28°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 40 km away) is warmest in April at about 30°C and coldest in January near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Hpa-An in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hpa-An peaks around August 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 11UV 13Dec 19UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar10Very high
Apr10Very high
May11Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Hpa-An 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 Hpa-An is worst in April — around 74 µg/m³ PM2.5 (unhealthy), about 5.6× the cleanest month (June, 13 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateApr 1172 µg/m³Jun 2313 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb35Moderate
Mar63Unhealthy
Apr74Unhealthy
May20Moderate
Jun13Moderate
Jul14Moderate
Aug15Moderate
Sep14Moderate
Oct15Moderate
Nov18Moderate
Dec22Moderate
Location & terrain

Where is Hpa-An?

Hpa-An sits at 16.9°N, 97.6°E, 18 m above sea level, in Myanmar. The nearest listed city is Hmaw Bi, 28 km away.

Topography around Hpa-An

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

Within 3 km, the terrain around Hpa-An has only modest variations in elevation — a maximum elevation change of 130 m around an average of 12 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 620 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,026 m.

The land around Hpa-An is covered by trees (37%) and cropland (23%) within 3 km, trees (42%) and cropland (37%) within 16 km, and trees (51%) and cropland (23%) within 80 km.

3 km
130 m
16 km
620 m
80 km
2,026 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Hmaw Bi 28 km · Thaton 28 km · Paung 36 km · Martaban 40 km · Mawlamyine 44 km · Mudon 71 km · Kawkareik 74 km · Kyaikto 81 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 Hpa-An (16.8895°, 97.6348°, elevation 18 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).