Lak Si weather in July

In July, Lak Si sees average daytime highs of 34°C and overnight lows near 26°C, with 150 mm of rain across 24 wet days and about 12.7 hours of daylight. It is the 6th-warmest and 6th-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 2% of the time in July, and the air most often feels miserable.

Daylight stretches from about 12 h 48 min at the start of July to 12 h 36 min by month's end. Set against the rest of the year, July is Lak Si's 11th-clearest and 2nd-windiest month. For the whole year in context, see Lak Si's year-round climate.

Daytime high
34°
6th warmest
Overnight low
26°
9th coldest
Rainfall
150 mm
24 wet days
Daylight
12 h 42 min
6:01 AM – 6:46 PM
Cloud cover
89%
11th clearest
Wind
9 km/h
2nd windiest
Solar energy
4.83 kWh/m²
Travel score
2.0
out of 10

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

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

A typical July day in Lak Si reaches about 34°C in the afternoon and slips back to 26°C overnight — a 7°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, July runs on par with June and on par with August.

25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13427
23426
33426
43426
53426
63426
73426
83426
93426
103426
113426
123426
133426
143426
153426
163426
173426
183426
193426
203426
213426
223426
233326
243326
253326
263326
273326
283326
293326
303326
313326

How July really feels in Lak Si

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

Lak Si weather by month

How July compares with the rest of the year at a glance. July is the 6th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°132.711.34.7
Feb34° / 24°132.611.53.9
Mar35° / 26°46711.92.8
Apr36° / 27°7312.112.31.8
May35° / 27°15422.212.61.7
Jun34° / 27°1522312.81.9
Jul34° / 26°1502412.72.0
Aug33° / 26°16824.412.52.1
Sep33° / 26°25525.512.12.1
Oct32° / 25°17419.811.72.9
Nov33° / 24°385.911.44.1
Dec32° / 22°91.811.24.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 6% of July, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3892
4991
5991
6892
7892
8991
9991
10991
111090
12991
13991
14991
15991
16991
17991
18892
19892
20892
21892
22793
23793
24694
25694
26694
27595
28595
29595
30496
31496

Chance of precipitation in July

Any precipitation

Lak Si gets around 150 mm of rain over 24 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 77% and peaks near 78% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
175
276
376
476
576
677
777
877
977
1077
1177
1277
1377
1477
1577
1677
1778
1878
1978
2078
2178
2278
2378
2478
2578
2678
2778
2878
2978
3078
3178

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the miserable band about 69% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
12872
22872
32872
42872
52872
62872
72872
82872
92872
102971
112971
122971
133070
143070
153070
163169
173169
183169
193268
203268
213268
223367
233367
243466
253466
263565
273664
283664
293763
303763
313862

Wind in July

Winds average 9 km/h in July.

Across July, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 12 h 48 min at the start of July to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over July. Sunrise moves from 5:57 AM to 6:05 AM, and sunset from 6:45 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:576:45
212.85:576:45
312.85:576:46
412.85:586:46
512.85:586:46
612.85:586:46
712.85:586:46
812.85:596:46
912.85:596:46
1012.85:596:46
1112.85:596:46
1212.86:006:46
1312.86:006:46
1412.86:006:46
1512.86:016:46
1612.76:016:46
1712.76:016:46
1812.76:016:46
1912.76:026:45
2012.76:026:45
2112.76:026:45
2212.76:036:45
2312.76:036:45
2412.76:036:45
2512.76:036:44
2612.76:046:44
2712.76:046:44
2812.76:046:44
2912.66:046:43
3012.66:056:43
3112.66:056:43

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.83 kWh/m².

For context, solar energy here swings from a low near 4.58 kWh/m² to a high of 6.19 kWh/m² in April across the year — July's 4.83 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in July

Hazard calendar for Lak Si

In seasonPeak

In July, Lak Si sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.

Lak Si sits in the Pacific typhoon belt; the season peaks July–October.

Lak Si's monsoon runs May–October, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Lak Si?

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

2.0
Sightseeing
9th-best month of the year
3.9
Beach & pool
8th-best month of the year

July is a weaker month for outdoor sightseeing in Lak Si.

What to pack for Lak Si in July

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

In July, Lak Si sees daytime highs around 34°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Lak Si in July

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

The sea at the nearest coast (about 57 km away) is warmest in May at about 31°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
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Lak Si in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Lak Si peaks around August 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 19 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 15UV 13Nov 19UV 8
UV index (midday)Level
Jan9Very high
Feb9Very high
Mar12Extreme
Apr11Extreme
May10Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec8Very high

Air quality in Lak Si in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Lak Si is worst in January — around 83 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (July, 43 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJan 2382 µg/m³Jul 2443 µg/m³
PM2.5 (µg/m³)Level
Jan83Unhealthy
Feb81Unhealthy
Mar70Unhealthy
Apr64Unhealthy
May54Poor
Jun44Poor
Jul43Poor
Aug43Poor
Sep54Poor
Oct66Unhealthy
Nov67Unhealthy
Dec66Unhealthy
Location & terrain

Where is Lak Si?

Lak Si sits at 13.9°N, 100.6°E, 8 m above sea level, in Thailand. The nearest listed city is Anusawari, 4.0 km away.

Topography around Lak Si

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

Within 3 km, the terrain around Lak Si has only modest variations in elevation — a maximum elevation change of 52 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 52 m; within 80 km, large variations in elevation — a maximum elevation change of 700 m.

The land around Lak Si is covered by artificial surfaces (71%) within 3 km, artificial surfaces (63%) and trees (21%) within 16 km, and cropland (38%) and water (21%) within 80 km.

3 km
52 m
16 km
52 m
80 km
700 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Anusawari 4.0 km · Lat Yao 5.0 km · Sena Nikhom 6.0 km · Chorakhe Bua 6.0 km · Chatuchak 7.0 km · Chatuchak subdistrict 7.0 km · Chan Kasem 7.0 km · Tha Raeng 7.0 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 Lak Si (13.8872°, 100.5792°, elevation 8 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).