Gwa weather in September

In September, Gwa sees average daytime highs of 28°C and overnight lows near 26°C, with 416 mm of rain across 27.1 wet days and about 12.1 hours of daylight. It is the 6th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 3% 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 Gwa's 9th-clearest and 9th-windiest month. For the whole year in context, see Gwa's year-round climate.

Daytime high
28°
6th warmest
Overnight low
26°
7th coldest
Rainfall
416 mm
27.1 wet days
Daylight
12 h 06 min
6:03 AM – 6:09 PM
Cloud cover
88%
9th clearest
Wind
14 km/h
9th windiest
Solar energy
4.08 kWh/m²
Travel score
3.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Gwa reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12726
22726
32726
42726
52726
62726
72726
82726
92726
102726
112726
122726
132726
142726
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826

How September really feels in Gwa

Once humidity and wind are folded in, September averages 20 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
20
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.

Gwa weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 23°80.511.18.9
Feb26° / 24°00.111.49.0
Mar27° / 25°40.711.98.8
Apr28° / 27°212.112.47.5
May29° / 27°25619.412.84.5
Jun28° / 26°79829.4133.2
Jul27° / 26°86430.412.93.2
Aug27° / 26°75730.512.63.2
Sep28° / 26°41627.112.13.6
Oct29° / 26°14417.311.64.8
Nov29° / 26°283.811.26.8
Dec28° / 24°60.7118.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1496
2496
3496
4595
5595
6595
7595
8793
9793
10793
11793
12793
13892
14892
15892
16892
17991
181090
191090
201189
211189
221288
231288
241387
251387
261585
271585
281684
291783
301981

Chance of precipitation in September

Any precipitation

Gwa gets around 416 mm of rain over 27.1 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 90% and peaks near 96% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
196
295
395
495
594
694
794
894
993
1093
1193
1293
1393
1492
1592
1692
1791
1891
1991
2090
2189
2288
2387
2486
2585
2684
2783
2882
2981
3080

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 86% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11189
21189
31189
41288
51288
61387
71387
81486
91486
101486
111585
121585
131585
141684
151684
161684
171684
181684
191684
201585
211585
221585
231585
241486
251585
261585
271585
281684
291684
301783

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812calm
2912calm
3012calm

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 6:01 AM to 6:05 AM, and sunset from 6:22 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:016:22
212.36:016:21
312.36:016:20
412.36:016:19
512.36:026:19
612.36:026:18
712.26:026:17
812.26:026:16
912.26:026:15
1012.26:026:14
1112.26:026:13
1212.26:036:12
1312.16:036:12
1412.16:036:11
1512.16:036:10
1612.16:036:09
1712.16:036:08
1812.16:036:07
1912.06:036:06
2012.06:046:05
2112.06:046:05
2212.06:046:04
2312.06:046:03
2412.06:046:02
2511.96:046:01
2611.96:056:00
2711.96:055:59
2811.96:055:58
2911.96:055:58
3011.96:055:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.08 kWh/m².

For context, solar energy here swings from a low near 3.3 kWh/m² to a high of 6.83 kWh/m² in April across the year — September's 4.08 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.7Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.9Moderate
134.0Moderate
144.0Bright
154.0Bright
164.1Bright
174.1Bright
184.2Bright
194.2Bright
204.2Bright
214.3Bright
224.3Bright
234.3Bright
244.4Bright
254.4Bright
264.4Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
Planning a trip in September

Hazard calendar for Gwa

In seasonPeak

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

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

Gwa'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 Gwa?

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

3.6
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 Gwa.

What to pack for Gwa in September

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

In September, Gwa sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. About 27 days see rain.

light clothesrain gear

Sea temperature near Gwa in September

The nearest coast averages about 29°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 22 km away) is warmest in May at about 30°C and coldest in February 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
Feb27Warm
Mar27Warm
Apr29Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug28Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Gwa 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 Gwa peaks around August 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 13UV 13Dec 18UV 7
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar10Extreme
Apr10Very high
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep10Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Air quality in Gwa 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 Gwa is worst in March — around 34 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (October, 14 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1333 µg/m³Oct 1714 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb31Moderate
Mar34Moderate
Apr26Moderate
May21Moderate
Jun18Moderate
Jul18Moderate
Aug19Moderate
Sep15Moderate
Oct14Moderate
Nov15Moderate
Dec19Moderate
Location & terrain

Where is Gwa?

Gwa sits at 17.6°N, 94.6°E, 9 m above sea level, in Myanmar. The nearest listed city is Kyeintali, 47 km away.

Topography around Gwa

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

Within 3 km, the terrain around Gwa has only modest variations in elevation — a maximum elevation change of 111 m around an average of 14 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 404 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,237 m.

The land around Gwa is covered by trees (41%) and water (34%) within 3 km, trees (52%) and water (40%) within 16 km, and trees (44%), water (34%) and cropland (20%) within 80 km.

3 km
111 m
16 km
404 m
80 km
1,237 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Kyeintali 47 km · Kyonpyaw 73 km · Ingabu 77 km · Pathein 92 km · Hinthada 93 km · Ngapali 98 km · Zalun 105 km · Myanaung 110 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 Gwa (17.5937°, 94.58°, elevation 9 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).