Martaban weather in May

In May, Martaban sees average daytime highs of 31°C and overnight lows near 26°C, with 442 mm of rain across 27.2 wet days and about 12.8 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 32°C in the first days to 30°C by the end. The sky is clear or mostly clear about 20% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 36 min at the start of May to 12 h 54 min by month's end. Set against the rest of the year, May is Martaban's 8th-clearest and 5th-windiest month. For the whole year in context, see Martaban's year-round climate.

Daytime high
31°
5th warmest
Overnight low
26°
11th coldest
Rainfall
442 mm
27.2 wet days
Daylight
12 h 48 min
5:33 AM – 6:19 PM
Cloud cover
74%
8th clearest
Wind
10 km/h
5th windiest
Solar energy
4.75 kWh/m²
Travel score
2.7
out of 10

Martaban is small town in the Thaton district of Mon State, Myanmar, the first capital of the Hanthawaddy Kingdom in the 13th and 14th centuries, and an entrepôt of international repute until the mid-16th century.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

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

A typical May day in Martaban reaches about 31°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 29°C and 33°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
13327
23227
33227
43227
53227
63227
73227
83227
93227
103227
113227
123227
133126
143126
153126
163126
173126
183126
193126
203126
213126
223026
233026
243026
253026
263026
273026
283026
293026
303026
313026

How May really feels in Martaban

Once humidity and wind are folded in, May averages 31 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
31
16 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Martaban weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°81.211.16.1
Feb32° / 23°40.711.45.5
Mar33° / 25°234.111.94.7
Apr33° / 27°7610.312.43.7
May31° / 26°44227.212.82.7
Jun29° / 26°75729.9132.6
Jul29° / 26°84630.812.92.8
Aug29° / 26°81730.712.62.8
Sep30° / 26°53829.112.12.7
Oct31° / 26°21221.211.63.3
Nov32° / 25°355.211.24.9
Dec31° / 23°101115.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 8% of May, with mostly cloudy or overcast conditions the remaining 73%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
25941
35743
45545
55347
65149
74951
84654
94456
104060
113862
123565
133367
143070
152773
162575
172278
181981
191783
201585
211288
221189
231090
24892
25793
26694
27694
28694
29496
30496
31397

Chance of precipitation in May

Any precipitation

Martaban gets around 442 mm of rain over 27.2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 87% and peaks near 99% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
165
267
369
471
572
674
775
877
978
1080
1181
1283
1385
1487
1588
1690
1791
1893
1994
2095
2196
2297
2397
2498
2598
2699
2799
2899
2999
3099
3199

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 99% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1496
2397
3397
4397
5298
6298
7298
8199
9199
10199
11199
12199
13199
14199
15199
16199
17199
18199
19199
20199
21199
22199
23199
24199
250100
260100
270100
280100
290100
300100
310100

Wind in May

Winds average 10 km/h in May.

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

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 36 min at the start of May to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:39 AM to 5:30 AM, and sunset from 6:14 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:396:14
212.65:396:15
312.65:386:15
412.65:386:15
512.65:376:15
612.75:376:16
712.75:366:16
812.75:366:16
912.75:356:17
1012.75:356:17
1112.75:346:17
1212.75:346:18
1312.75:346:18
1412.75:336:18
1512.85:336:19
1612.85:336:19
1712.85:326:19
1812.85:326:20
1912.85:326:20
2012.85:326:20
2112.85:316:21
2212.85:316:21
2312.85:316:21
2412.85:316:22
2512.95:316:22
2612.95:306:22
2712.95:306:23
2812.95:306:23
2912.95:306:23
3012.95:306:24
3112.95:306:24

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.75 kWh/m².

For context, solar energy here swings from a low near 2.95 kWh/m² to a high of 6.47 kWh/m² in April across the year — May's 4.75 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.8Bright
45.7Bright
55.7Bright
65.6Bright
75.5Bright
85.4Bright
95.3Bright
105.3Bright
115.2Bright
125.1Bright
135.0Bright
144.9Bright
154.8Bright
164.7Bright
174.6Bright
184.5Bright
194.4Bright
204.4Bright
214.3Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.0Bright
274.0Bright
284.0Moderate
293.9Moderate
303.9Moderate
313.9Moderate
Planning a trip in May

Hazard calendar for Martaban

In seasonPeak

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

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

Martaban'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 May a good time to visit Martaban?

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

2.7
Sightseeing
10th-best month of the year
4.1
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Martaban.

What to pack for Martaban in May

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

In May, Martaban sees daytime highs around 31°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near Martaban in May

The nearest coast averages about 30°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 28 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 Martaban in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Martaban peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 12UV 13Dec 18UV 8
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar11Extreme
Apr10Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Martaban in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Martaban is worst in February — around 50 µg/m³ PM2.5 (poor), about 3.5× the cleanest month (June, 15 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1649 µg/m³Jun 2115 µg/m³
PM2.5 (µg/m³)Level
Jan40Poor
Feb50Poor
Mar42Poor
Apr28Moderate
May19Moderate
Jun15Moderate
Jul16Moderate
Aug16Moderate
Sep15Moderate
Oct17Moderate
Nov23Moderate
Dec30Moderate
Location & terrain

Where is Martaban?

Martaban sits at 16.5°N, 97.6°E, 27 m above sea level, in Myanmar. The nearest listed city is Mawlamyine, 4.0 km away.

Topography around Martaban

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

Within 3 km, the terrain around Martaban has only modest variations in elevation — a maximum elevation change of 118 m around an average of 8 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 401 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,844 m.

The land around Martaban is covered by water (49%) and trees (34%) within 3 km, cropland (45%) and trees (27%) within 16 km, and trees (42%), water (29%) and cropland (23%) within 80 km.

3 km
118 m
16 km
401 m
80 km
1,844 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
May weather nearby: Mawlamyine 4.0 km · Hmaw Bi 12 km · Paung 19 km · Mudon 32 km · Hpa-An 40 km · Kyaikkami 50 km · Thaton 51 km · Thanbyuzayat 63 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 Martaban (16.5283°, 97.6157°, elevation 27 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).