Ko Lanta weather in June

In June, Ko Lanta sees average daytime highs of 29°C and overnight lows near 27°C, with 229 mm of rain across 21.9 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 7% of the time in June, and the air most often feels miserable.

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

Daytime high
29°
4th warmest
Overnight low
27°
12th coldest
Rainfall
229 mm
21.9 wet days
Daylight
12 h 24 min
6:11 AM – 6:37 PM
Cloud cover
82%
8th clearest
Wind
16 km/h
7th windiest
Solar energy
5.27 kWh/m²
Travel score
3.8
out of 10

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

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

A typical June day in Ko Lanta 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 29°C. Set against its neighbours, June runs on par with May and on par with July.

24°26°28°30°32°151015202530
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

How June really feels in Ko Lanta

Once humidity and wind are folded in, June 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 June is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ko Lanta weather by month

How June compares with the rest of the year at a glance. June 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
Jan28° / 26°466.311.66.2
Feb29° / 26°25411.86.3
Mar29° / 27°8310.911.95.4
Apr29° / 27°14819.912.24.1
May29° / 27°25825.212.33.5
Jun29° / 27°22921.912.43.8
Jul29° / 27°22722.112.43.9
Aug28° / 27°27022.612.24.0
Sep28° / 26°30224.4123.8
Oct28° / 26°32728.311.83.6
Nov28° / 26°2232311.74.2
Dec28° / 26°10512.311.65.4

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 9% of June, with mostly cloudy or overcast conditions the remaining 84%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11387
21387
31387
41387
51486
61585
71585
81684
91684
101783
111783
121783
131882
141882
151882
161882
171882
181882
191783
201783
211783
221783
231684
241684
251684
261684
271684
281585
291585
301585

Chance of precipitation in June

Any precipitation

Ko Lanta gets around 229 mm of rain over 21.9 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 73% and peaks near 79% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
179
279
378
478
578
678
778
877
977
1076
1176
1275
1374
1473
1573
1672
1771
1871
1970
2070
2170
2269
2369
2469
2568
2668
2769
2869
2969
3069

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the miserable band about 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11387
21387
31387
41387
51387
61387
71387
81387
91486
101486
111585
121585
131684
141783
151783
161882
171882
181981
191981
202080
212080
222179
232278
242278
252377
262476
272575
282674
292773
302872

Wind in June

Winds average 16 km/h in June.

Across June, daily wind ranges from about 15 km/h on the calmest days to 17 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
815light breeze
915light breeze
1015light breeze
1115light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze

Sunrise & sunset in June

DaylightNight

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

Days grow by about 0 minutes over June. Sunrise moves from 6:09 AM to 6:14 AM, and sunset from 6:33 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:096:33
212.46:096:34
312.46:096:34
412.46:096:34
512.46:096:34
612.46:096:35
712.46:106:35
812.46:106:35
912.46:106:35
1012.46:106:36
1112.46:106:36
1212.46:106:36
1312.46:106:36
1412.46:106:36
1512.46:116:37
1612.46:116:37
1712.46:116:37
1812.46:116:37
1912.46:116:38
2012.46:126:38
2112.46:126:38
2212.46:126:38
2312.46:126:39
2412.46:126:39
2512.46:136:39
2612.46:136:39
2712.46:136:39
2812.46:136:39
2912.46:146:40
3012.46:146:40

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.27 kWh/m².

For context, solar energy here swings from a low near 4.66 kWh/m² to a high of 6.42 kWh/m² in March across the year — June's 5.27 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in June

Hazard calendar for Ko Lanta

In seasonPeak

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

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

Ko Lanta's rainy season runs April–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 June a good time to visit Ko Lanta?

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

3.8
Sightseeing
9th-best month of the year
4.8
Beach & pool
7th-best month of the year

June is a weaker month for outdoor sightseeing in Ko Lanta.

What to pack for Ko Lanta in June

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

In June, Ko Lanta sees daytime highs around 29°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Ko Lanta in June

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

The sea offshore is warmest in May at about 30°C and coldest in January near 29°C.

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

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar30Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Ko Lanta in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Ko Lanta peaks around February 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 22UV 13Nov 22UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Extreme

Air quality in Ko Lanta in June

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Ko Lanta is worst in April — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodGoodModerateApr 1115 µg/m³Aug 2011 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar15Moderate
Apr16Moderate
May13Moderate
Jun13Moderate
Jul13Moderate
Aug11Good
Sep12Moderate
Oct12Good
Nov12Good
Dec13Moderate
Location & terrain

Where is Ko Lanta?

Ko Lanta sits at 7.5°N, 99.1°E, 0 m above sea level, in Thailand. The nearest listed city is Ko Phi Phi, 42 km away.

Topography around Ko Lanta

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

Within 3 km, the terrain around Ko Lanta has significant variations in elevation — a maximum elevation change of 481 m around an average of 77 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 487 m; within 80 km, large variations in elevation — a maximum elevation change of 1,003 m.

The land around Ko Lanta is covered by trees (53%) and water (41%) within 3 km, water (82%) within 16 km, and water (59%) and trees (36%) within 80 km.

3 km
481 m
16 km
487 m
80 km
1,003 m
treesgrasslandartificial surfaceswatermangroves
June weather nearby: Ko Phi Phi 42 km · Trang 58 km · Krabi 63 km · Ao Nang 65 km · Huai Yot 67 km · Ban Ko Sire 83 km · Ban Talat Yai 85 km · Phuket 86 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 Ko Lanta (7.5336°, 99.0865°, 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).