Chachoengsao weather in August

In August, Chachoengsao sees average daytime highs of 33°C and overnight lows near 26°C, with 214 mm of rain across 26.5 wet days and about 12.5 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 1% of the time in August, and the air most often feels miserable.

Daylight stretches from about 12 h 36 min at the start of August to 12 h 18 min by month's end. Set against the rest of the year, August is Chachoengsao's 12th-clearest and 2nd-windiest month. For the whole year in context, see Chachoengsao's year-round climate.

Daytime high
33°
7th warmest
Overnight low
26°
8th coldest
Rainfall
214 mm
26.5 wet days
Daylight
12 h 30 min
6:06 AM – 6:34 PM
Cloud cover
90%
12th clearest
Wind
9 km/h
2nd windiest
Solar energy
4.6 kWh/m²
Travel score
2.2
out of 10

Chachoengsao is town in Chachoengsao province, Thailand.

Air quality
Elevated
PM2.5 16 µg/m³ · 2019
Founded
1549

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical August day in Chachoengsao reaches about 33°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 34°C. Set against its neighbours, August runs on par with July and on par with September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13226
23226
33226
43226
53226
63226
73226
83226
93326
103326
113326
123326
133326
143326
153326
163326
173326
183326
193326
203326
213326
223326
233326
243326
253326
263326
273326
283326
293326
303226
313226

How August really feels in Chachoengsao

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

Chachoengsao weather by month

How August compares with the rest of the year at a glance. August is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°183.811.34.8
Feb33° / 23°194.311.54.0
Mar35° / 25°6110.211.92.9
Apr35° / 26°9715.312.32.1
May34° / 27°19123.712.61.9
Jun33° / 27°18124.512.82.1
Jul33° / 26°19625.412.72.2
Aug33° / 26°21426.512.52.2
Sep32° / 26°29326.912.12.2
Oct32° / 25°17619.611.73.0
Nov32° / 24°335.611.44.2
Dec32° / 22°91.911.25.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in August, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 5% of August, with mostly cloudy or overcast conditions the remaining 94%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1496
2496
3496
4595
5595
6595
7595
8595
9595
10595
11694
12694
13694
14694
15694
16694
17694
18694
19694
20694
21793
22793
23793
24793
25793
26793
27793
28793
29793
30793
31694

Chance of precipitation in August

Any precipitation

Chachoengsao gets around 214 mm of rain over 26.5 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 85% and peaks near 89% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
185
285
385
485
585
684
784
884
984
1084
1184
1284
1384
1484
1584
1684
1784
1884
1985
2085
2185
2286
2386
2486
2587
2687
2788
2888
2988
3088
3189

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11486
21486
31486
41486
51387
61387
71387
81387
91387
101387
111387
121288
131288
141189
151189
161090
171090
18991
19991
20892
21793
22793
23694
24694
25595
26595
27595
28496
29496
30496
31496

Wind in August

Winds average 9 km/h in August.

Across August, daily wind ranges from about 8 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
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 36 min at the start of August to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over August. Sunrise moves from 6:03 AM to 6:07 AM, and sunset from 6:40 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:036:40
212.66:046:40
312.66:046:39
412.66:046:39
512.66:046:39
612.66:046:38
712.66:056:38
812.56:056:38
912.56:056:37
1012.56:056:37
1112.56:056:36
1212.56:056:36
1312.56:066:35
1412.56:066:35
1512.56:066:34
1612.56:066:34
1712.46:066:33
1812.46:066:32
1912.46:066:32
2012.46:076:31
2112.46:076:31
2212.46:076:30
2312.46:076:29
2412.46:076:29
2512.46:076:28
2612.36:076:28
2712.36:076:27
2812.36:076:26
2912.36:076:26
3012.36:076:25
3112.36:076:24

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.6 kWh/m².

For context, solar energy here swings from a low near 4.47 kWh/m² to a high of 6 kWh/m² in April across the year — August's 4.6 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in August

Hazard calendar for Chachoengsao

In seasonPeak

In August, Chachoengsao sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

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

Chachoengsao's rainy season runs May–October, when most of the year's rain falls.

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

Is August a good time to visit Chachoengsao?

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

2.2
Sightseeing
7th-best month of the year
3.7
Beach & pool
11th-best month of the year

August is a weaker month for outdoor sightseeing in Chachoengsao.

What to pack for Chachoengsao in August

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

In August, Chachoengsao sees daytime highs around 33°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 Chachoengsao in August

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

The sea at the nearest coast (about 41 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 Chachoengsao in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Chachoengsao peaks around August 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeExtremeVery highAug 15UV 13Dec 13UV 9
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May9Very high
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov9Very high
Dec9Very high

Air quality in Chachoengsao in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Chachoengsao is worst in January — around 22 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (June, 11 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Chachoengsao's WHO annual average of 16 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateJan 2322 µg/m³Jun 2011 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb22Moderate
Mar18Moderate
Apr15Moderate
May13Moderate
Jun11Good
Jul12Good
Aug12Good
Sep16Moderate
Oct19Moderate
Nov17Moderate
Dec16Moderate
Location & terrain

Where is Chachoengsao?

Chachoengsao sits at 13.7°N, 101.1°E, 4 m above sea level, in Thailand. The nearest listed city is Bang Pakong, 18 km away.

Topography around Chachoengsao

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

Within 3 km, the terrain around Chachoengsao has only modest variations in elevation — a maximum elevation change of 12 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 36 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,243 m.

The land around Chachoengsao is covered by trees (37%) and artificial surfaces (36%) within 3 km, cropland (43%) and trees (23%) within 16 km, and trees (37%) and cropland (26%) within 80 km.

3 km
12 m
16 km
36 m
80 km
1,243 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Bang Pakong 18 km · Phan Thong 24 km · Ban Khlong Bang Sao Thong 26 km · Nong Chok 29 km · Phanat Nikhom 30 km · Bang Bo District 30 km · Phanom Sarakham 31 km · Lat Krabang 31 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 Chachoengsao (13.6882°, 101.0716°, elevation 4 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).