Ao Nang weather in May

In May, Ao Nang sees average daytime highs of 29°C and overnight lows near 27°C, with 249 mm of rain across 24.9 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 5th-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 5% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of May to 12 h 24 min by month's end. Set against the rest of the year, May is Ao Nang's 7th-clearest and 8th-windiest month. For the whole year in context, see Ao Nang's year-round climate.

Daytime high
29°
4th warmest
Overnight low
27°
11th coldest
Rainfall
249 mm
24.9 wet days
Daylight
12 h 24 min
6:10 AM – 6:32 PM
Cloud cover
82%
7th clearest
Wind
13 km/h
8th windiest
Solar energy
5.23 kWh/m²
Travel score
3.4
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical May day in Ao Nang reaches about 29°C in the afternoon and slips back to 27°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, May runs on par with April and on par with June.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
12927
22927
32927
42927
52927
62927
72927
82927
92927
102927
112927
122927
132927
142927
152927
162927
172927
182927
192927
202927
212927
222927
232927
242927
252927
262927
272927
282927
292927
302927
312927

How May really feels in Ao Nang

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
heat index over the day's high
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.

Ao Nang weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 25°436.511.65.8
Feb30° / 26°214.411.75.8
Mar30° / 27°7010.411.95.1
Apr30° / 27°12718.412.24.1
May29° / 27°24924.912.43.4
Jun29° / 27°25022.712.53.6
Jul29° / 27°23423.212.43.8
Aug28° / 26°25623.912.33.8
Sep28° / 26°28324.5123.7
Oct28° / 26°27827.611.83.5
Nov28° / 26°17521.511.64.0
Dec29° / 25°8311.811.55.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 9% of May, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
21981
31882
41783
51783
61684
71684
81684
91684
101684
111486
121486
131486
141486
151486
161486
171486
181387
191387
201387
211387
221387
231387
241387
251288
261288
271288
281189
291189
301189
311090

Chance of precipitation in May

Any precipitation

Ao Nang gets around 249 mm of rain over 24.9 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 80% and peaks near 83% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
178
279
379
480
581
681
782
882
983
1083
1183
1283
1383
1483
1583
1683
1782
1882
1981
2080
2180
2279
2378
2478
2578
2678
2778
2878
2978
3078
3178

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1595
2595
3496
4496
5496
6496
7496
8496
9496
10496
11496
12595
13595
14595
15595
16595
17595
18595
19595
20694
21694
22694
23694
24694
25694
26694
27694
28694
29694
30694
31694

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
612calm
712calm
812calm
912light breeze
1012light breeze
1112light breeze
1212light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 18 min at the start of May to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over May. Sunrise moves from 6:14 AM to 6:09 AM, and sunset from 6:30 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:146:30
212.36:136:30
312.36:136:30
412.36:136:31
512.36:126:31
612.36:126:31
712.36:126:31
812.36:126:31
912.36:116:31
1012.36:116:31
1112.36:116:31
1212.36:116:31
1312.46:116:32
1412.46:106:32
1512.46:106:32
1612.46:106:32
1712.46:106:32
1812.46:106:32
1912.46:106:33
2012.46:106:33
2112.46:096:33
2212.46:096:33
2312.46:096:33
2412.46:096:33
2512.46:096:34
2612.46:096:34
2712.46:096:34
2812.46:096:34
2912.46:096:35
3012.46:096:35
3112.46:096:35

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.23 kWh/m².

For context, solar energy here swings from a low near 4.45 kWh/m² to a high of 6.2 kWh/m² in March across the year — May's 5.23 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.5Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Ao Nang

In seasonPeak

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

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

Ao Nang's rainy season runs May–November, when most of the year's rain falls.

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

Is May a good time to visit Ao Nang?

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

3.4
Sightseeing
12th-best month of the year
4.5
Beach & pool
10th-best month of the year

May is a weaker month for outdoor sightseeing in Ao Nang.

What to pack for Ao Nang in May

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

In May, Ao Nang sees daytime highs around 29°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Ao Nang 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 20 km away) 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
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Ao Nang in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ao Nang peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeApr 11UV 13Nov 23UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Extreme

Air quality in Ao Nang 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 Ao Nang is worst in April — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1120 µg/m³Aug 1813 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb17Moderate
Mar19Moderate
Apr20Moderate
May16Moderate
Jun15Moderate
Jul16Moderate
Aug13Moderate
Sep15Moderate
Oct15Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Ao Nang?

Ao Nang sits at 8.0°N, 98.8°E, 0 m above sea level, in Thailand. The nearest listed city is Krabi, 11 km away.

Topography around Ao Nang

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

Within 3 km, the terrain around Ao Nang has significant variations in elevation — a maximum elevation change of 320 m around an average of 33 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 514 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,369 m.

The land around Ao Nang is covered by trees (46%) and water (35%) within 3 km, water (58%) and trees (31%) within 16 km, and trees (51%) and water (44%) within 80 km.

3 km
320 m
16 km
514 m
80 km
1,369 m
treesgrasslandartificial surfaceswatermangroves
May weather nearby: Krabi 11 km · Ko Phi Phi 34 km · Ban Ko Sire 46 km · Ban Ratsada 47 km · Phuket 49 km · Ban Talat Yai 49 km · Wichit 50 km · Ban Talat Nua 50 km

Thailand travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$8,057
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
4.8
per 100k, 2011
Road deaths
32.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 402
Religion
Buddhist 93%Muslim 5%Christian 1%other 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 Ao Nang (8.0458°, 98.8103°, elevation 0 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).