Tha Kham weather in May

In May, Tha Kham sees average daytime highs of 34°C and overnight lows near 25°C, with 180 mm of rain across 24.2 wet days and about 12.4 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 4% 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 30 min by month's end. Set against the rest of the year, May is Tha Kham's 7th-clearest and 8th-windiest month. For the whole year in context, see Tha Kham's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
25°
12th coldest
Rainfall
180 mm
24.2 wet days
Daylight
12 h 24 min
6:07 AM – 6:32 PM
Cloud cover
83%
7th clearest
Wind
7 km/h
8th windiest
Solar energy
5.42 kWh/m²
Travel score
2.1
out of 10

Tha Kham is town in Surat Thani province, Thailand.

Founded
1955

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical May day in Tha Kham reaches about 34°C in the afternoon and slips back to 25°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 36°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13425
23425
33425
43425
53425
63425
73425
83425
93425
103425
113425
123425
133425
143425
153425
163325
173325
183325
193325
203325
213325
223325
233325
243325
253325
263325
273325
283325
293325
303325
313325

How May really feels in Tha Kham

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
31 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.

Tha Kham weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°699.511.54.4
Feb33° / 23°375.811.73.7
Mar35° / 24°10911.211.92.7
Apr35° / 25°15618.412.22.0
May34° / 25°18024.212.42.1
Jun33° / 25°14221.812.52.5
Jul32° / 25°14322.312.52.6
Aug32° / 24°16823.312.32.6
Sep32° / 24°21725.912.12.5
Oct31° / 24°31728.511.82.5
Nov30° / 24°25623.611.63.1
Dec30° / 23°13516.511.54.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 10% of May, with mostly cloudy or overcast conditions the remaining 86%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22377
32377
42179
52080
61981
71882
81783
91684
101585
111585
121486
131486
141486
151288
161189
171189
181189
191189
201189
211189
221189
231090
241090
251090
261090
271090
28991
29991
30991
31892

Chance of precipitation in May

Any precipitation

Tha Kham gets around 180 mm of rain over 24.2 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 78% and peaks near 81% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
173
274
375
476
577
677
778
878
979
1079
1179
1280
1380
1480
1580
1679
1779
1879
1978
2078
2178
2278
2378
2478
2578
2679
2779
2880
2980
3081
3181

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 84% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11882
21783
31783
41684
51585
61585
71486
81486
91486
101486
111486
121486
131486
141486
151585
161585
171585
181684
191684
201684
211783
221783
231783
241783
251783
261783
271783
281684
291684
301684
311585

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 5 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 18 min at the start of May to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 6:11 AM to 6:06 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)
112.36:116:30
212.36:106:30
312.36:106:30
412.36:106:30
512.36:096:30
612.46:096:30
712.46:096:30
812.46:096:31
912.46:086:31
1012.46:086:31
1112.46:086:31
1212.46:086:31
1312.46:076:31
1412.46:076:31
1512.46:076:32
1612.46:076:32
1712.46:076:32
1812.46:076:32
1912.46:066:32
2012.46:066:33
2112.46:066:33
2212.46:066:33
2312.56:066:33
2412.56:066:33
2512.56:066:34
2612.56:066:34
2712.56:066:34
2812.56:066:34
2912.56:066:35
3012.56:066:35
3112.56:066:35

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.42 kWh/m².

For context, solar energy here swings from a low near 4.07 kWh/m² to a high of 6.16 kWh/m² in March across the year — May's 5.42 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.6Bright
75.6Bright
85.6Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in May

Hazard calendar for Tha Kham

In seasonPeak

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

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

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

Is May a good time to visit Tha Kham?

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

2.1
Sightseeing
11th-best month of the year
3.9
Beach & pool
10th-best month of the year

May is a weaker month for outdoor sightseeing in Tha Kham.

What to pack for Tha Kham in May

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

In May, Tha Kham sees daytime highs around 34°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Tha Kham in May

The nearest coast averages about 31°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 33 km away) is warmest in May at about 31°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
May31Tropical
Jun30Tropical
Jul30Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Tha Kham 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 Tha Kham peaks around August 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 21UV 13Dec 16UV 10
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in Tha Kham 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 Tha Kham is worst in April — around 21 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1021 µg/m³Aug 2014 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb18Moderate
Mar20Moderate
Apr21Moderate
May17Moderate
Jun16Moderate
Jul16Moderate
Aug14Moderate
Sep15Moderate
Oct15Moderate
Nov14Moderate
Dec15Moderate
Location & terrain

Where is Tha Kham?

Tha Kham sits at 9.1°N, 99.2°E, 10 m above sea level, in Thailand. The nearest listed city is Surat Thani, 12 km away.

Lang SuanNakhon Si ThammaratKo Pha-nganRanongThung Song

Topography around Tha Kham

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

Within 3 km, the terrain around Tha Kham has only modest variations in elevation — a maximum elevation change of 73 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 308 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,535 m.

The land around Tha Kham is covered by trees (70%) within 3 km, trees (69%) within 16 km, and trees (75%) and water (22%) within 80 km.

3 km
73 m
16 km
308 m
80 km
1,535 m
treesgrasslandcroplandartificial surfaceswatermangroves
May weather nearby: Surat Thani 12 km · Ban Na San 37 km · Ko Samui 91 km · Lang Suan 94 km · Nakhon Si Thammarat 110 km · Ko Pha-ngan 113 km · Ranong 115 km · Thung Song 116 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 Tha Kham (9.1107°, 99.2321°, elevation 10 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).