Dawei weather in September

In September, Dawei sees average daytime highs of 29°C and overnight lows near 24°C, with 516 mm of rain across 29.2 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 4th-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 1% 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 Dawei's 9th-clearest and 8th-windiest month. For the whole year in context, see Dawei's year-round climate.

Daytime high
29°
10th warmest
Overnight low
24°
8th coldest
Rainfall
516 mm
29.2 wet days
Daylight
12 h 06 min
5:49 AM – 5:54 PM
Cloud cover
91%
9th clearest
Wind
5 km/h
8th windiest
Solar energy
3.51 kWh/m²
Travel score
2.9
out of 10

Dawei is city in Myanmar.

Founded
1751

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 Dawei reaches about 29°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, September runs on par with August and about 2°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162924
172924
182924
192924
202924
212924
222924
232924
242924
252924
262924
272924
282924
292924
302924

How September really feels in Dawei

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.

Dawei weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°132.311.36.1
Feb31° / 22°132.811.55.6
Mar32° / 24°488.811.94.6
Apr32° / 25°12016.912.33.5
May30° / 25°37428.312.62.7
Jun29° / 25°57729.812.82.8
Jul28° / 24°71630.712.73.1
Aug28° / 24°73430.612.53.1
Sep29° / 24°51629.212.12.9
Oct30° / 24°26424.511.73.3
Nov31° / 23°507.411.35.0
Dec30° / 22°10211.26.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 4% of September, with mostly cloudy or overcast conditions the remaining 95%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1298
2298
3298
4298
5298
6298
7298
8298
9298
10397
11496
12496
13496
14496
15496
16496
17595
18595
19595
20595
21793
22793
23793
24793
25793
26892
27892
28892
29892
30892

Chance of precipitation in September

Any precipitation

Dawei gets around 516 mm of rain over 29.2 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 97% and peaks near 98% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
198
298
398
498
598
698
798
898
998
1098
1198
1298
1398
1497
1597
1697
1797
1897
1997
2097
2196
2296
2396
2496
2596
2696
2797
2897
2997
3097

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 69% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
13367
23466
33565
43664
53664
63763
73763
83763
93763
103664
113664
123565
133565
143466
153367
163268
173169
183070
192971
202872
212773
222674
232575
242476
252377
262377
272278
282278
292278
302278

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 5:50 AM, and sunset from 6:05 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:496:05
212.35:496:05
312.35:496:04
412.25:496:03
512.25:496:02
612.25:496:02
712.25:496:01
812.25:496:00
912.25:495:59
1012.25:495:59
1112.15:495:58
1212.15:495:57
1312.15:495:56
1412.15:495:55
1512.15:495:55
1612.15:495:54
1712.15:495:53
1812.15:495:52
1912.05:495:52
2012.05:495:51
2112.05:495:50
2212.05:495:49
2312.05:495:48
2412.05:505:48
2512.05:505:47
2611.95:505:46
2711.95:505:45
2811.95:505:45
2911.95:505:44
3011.95:505:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.51 kWh/m².

For context, solar energy here swings from a low near 3.01 kWh/m² to a high of 6.17 kWh/m² in March across the year — September's 3.51 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.3Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.7Moderate
243.7Moderate
253.7Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.9Moderate
303.9Moderate
Planning a trip in September

Hazard calendar for Dawei

In seasonPeak

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

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

Dawei's monsoon runs May–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 Dawei?

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

2.9
Sightseeing
10th-best month of the year
3.6
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Dawei.

What to pack for Dawei in September

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

In September, Dawei sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

Sea temperature near Dawei 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 offshore is warmest in May at about 30°C and coldest in January near 28°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
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug28Tropical
Sep28Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Dawei 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 Dawei peaks around August 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 14UV 13Nov 22UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr11Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec9Very high

Air quality in Dawei 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 Dawei is worst in March — around 39 µg/m³ PM2.5 (poor), about 4.1× the cleanest month (September, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodGoodMar 1737 µg/m³Sep 2310 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb27Moderate
Mar39Poor
Apr28Moderate
May15Moderate
Jun11Good
Jul12Moderate
Aug12Good
Sep10Good
Oct10Good
Nov11Good
Dec12Moderate
Location & terrain

Where is Dawei?

Dawei sits at 14.1°N, 98.2°E, 17 m above sea level, in Myanmar. The nearest listed city is Ye, 134 km away.

YePayathonzuBo PhloiKanchanaburiTha MuangChom BuengTha MakaPhotharam

Topography around Dawei

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

Within 3 km, the terrain around Dawei has only modest variations in elevation — a maximum elevation change of 38 m around an average of 8 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 465 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,554 m.

The land around Dawei is covered by artificial surfaces (27%), trees (24%) and cropland (22%) within 3 km, trees (63%) within 16 km, and trees (56%) and water (41%) within 80 km.

3 km
38 m
16 km
465 m
80 km
1,554 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Ye 134 km · Payathonzu 139 km · Bo Phloi 145 km · Kanchanaburi 147 km · Tha Muang 157 km · Chom Bueng 160 km · Tha Maka 171 km · Photharam 184 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 Dawei (14.0823°, 98.1915°, elevation 17 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).