Sittwe weather in September

In September, Sittwe sees average daytime highs of 30°C and overnight lows near 26°C, with 393 mm of rain across 28.1 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. 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 24 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Sittwe's 9th-clearest and 8th-windiest month. For the whole year in context, see Sittwe's year-round climate.

Daytime high
30°
5th warmest
Overnight low
26°
9th coldest
Rainfall
393 mm
28.1 wet days
Daylight
12 h 06 min
6:09 AM – 6:16 PM
Cloud cover
87%
9th clearest
Wind
9 km/h
8th windiest
Solar energy
4.09 kWh/m²
Travel score
2.6
out of 10

Sittwe is city 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 30°C through the month.

A typical September day in Sittwe reaches about 30°C in the afternoon and slips back to 26°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

25°28°30°33°35°151015202530
Avg high (°C)Avg low (°C)
13026
23026
33026
43026
53026
63026
73026
83026
93026
103026
113026
123026
133026
143026
153026
163026
173026
183026
193026
203126
213126
223126
233126
243126
253126
263126
273126
283126
293126
303126

How September really feels in Sittwe

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.

Sittwe 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
Jan28° / 16°80.710.98.6
Feb30° / 18°40.511.36.9
Mar32° / 22°81.511.95.3
Apr33° / 25°224.312.44.2
May32° / 26°26120.912.93.0
Jun30° / 26°66129.513.22.5
Jul30° / 26°76330.613.12.6
Aug30° / 26°59830.612.72.6
Sep30° / 26°39328.112.12.6
Oct31° / 25°2112011.53.5
Nov30° / 22°394.5116.0
Dec28° / 18°12110.88.1

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 6% of September, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1397
2397
3397
4496
5496
6496
7595
8595
9595
10694
11694
12694
13694
14793
15793
16793
17793
18892
19991
20991
211090
221189
231288
241288
251585
261585
271783
281783
292080
302080

Chance of precipitation in September

Any precipitation

Sittwe gets around 393 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 97% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
197
297
397
497
597
697
797
897
997
1097
1197
1297
1397
1497
1596
1696
1796
1895
1995
2094
2193
2292
2391
2490
2589
2688
2788
2887
2986
3085

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

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
10100
20100
30100
40100
50100
60100
70100
80100
90100
100100
110100
120100
130100
140100
150100
160100
17199
18199
19199
20199
21199
22199
23199
24199
25199
26199
27199
28199
29199
30199

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 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 36 minutes over September. Sunrise moves from 6:06 AM to 6:13 AM, and sunset from 6:30 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:066:30
212.46:066:29
312.46:066:28
412.36:076:28
512.36:076:27
612.36:076:26
712.36:076:25
812.36:086:24
912.36:086:23
1012.26:086:22
1112.26:086:21
1212.26:086:20
1312.26:096:19
1412.26:096:18
1512.16:096:17
1612.16:096:16
1712.16:106:15
1812.16:106:14
1912.16:106:13
2012.06:106:12
2112.06:106:11
2212.06:116:10
2312.06:116:09
2412.06:116:08
2511.96:116:08
2611.96:126:07
2711.96:126:06
2811.96:126:05
2911.96:126:04
3011.86:136:03

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.09 kWh/m².

For context, solar energy here swings from a low near 3.14 kWh/m² to a high of 6.62 kWh/m² in April across the year — September's 4.09 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.9Moderate
83.9Moderate
93.9Moderate
103.9Moderate
114.0Moderate
124.0Moderate
134.0Bright
144.0Bright
154.1Bright
164.1Bright
174.1Bright
184.2Bright
194.2Bright
204.2Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.4Bright
264.4Bright
274.4Bright
284.4Bright
294.5Bright
304.5Bright
Planning a trip in September

Hazard calendar for Sittwe

In seasonPeak

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

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

Sittwe'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 Sittwe?

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

2.6
Sightseeing
9th-best month of the year
3.7
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Sittwe.

What to pack for Sittwe in September

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

In September, Sittwe sees daytime highs around 30°C and nights near 26°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

Sea temperature near Sittwe 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 offshore is warmest in October at about 30°C and coldest in February near 25°C.

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

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb25Warm
Mar27Warm
Apr29Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug28Tropical
Sep29Tropical
Oct30Tropical
Nov29Tropical
Dec27Warm

UV index in Sittwe 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 Sittwe peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeExtremeVery highHighAug 12UV 13Dec 21UV 6
UV index (midday)Level
Jan7High
Feb8Very high
Mar9Very high
Apr9Very high
May12Extreme
Jun9Very high
Jul12Extreme
Aug13Extreme
Sep10Very high
Oct10Very high
Nov8Very high
Dec6High

Air quality in Sittwe 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 Sittwe is worst in April — around 56 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (November, 13 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateApr 1155 µg/m³Nov 913 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb39Poor
Mar50Poor
Apr56Unhealthy
May27Moderate
Jun19Moderate
Jul18Moderate
Aug19Moderate
Sep15Moderate
Oct14Moderate
Nov13Moderate
Dec22Moderate
Location & terrain

Where is Sittwe?

Sittwe sits at 20.1°N, 92.9°E, 5 m above sea level, in Myanmar. The nearest listed city is Mrauk U, 58 km away.

AnnManaungCox's BazarTaungup

Topography around Sittwe

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

Within 3 km, the terrain around Sittwe has only modest variations in elevation — a maximum elevation change of 18 m around an average of 4 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 283 m; within 80 km, large variations in elevation — a maximum elevation change of 886 m.

The land around Sittwe is covered by water (41%) and trees (20%) within 3 km, water (57%) and cropland (27%) within 16 km, and water (49%), trees (28%) and cropland (20%) within 80 km.

3 km
18 m
16 km
283 m
80 km
886 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Mrauk U 58 km · Kyauktaw 78 km · Buthidaung Town 90 km · Kyaukpyu 105 km · Ann 126 km · Manaung 168 km · Cox's Bazar 171 km · Taungup 201 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 Sittwe (20.1462°, 92.8983°, elevation 5 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).