Roi Et weather in August

In August, Roi Et sees average daytime highs of 32°C and overnight lows near 25°C, with 240 mm of rain across 25.2 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 32°C through the month. The sky is clear or mostly clear about 2% of the time in August, and the air most often feels miserable.

Daylight stretches from about 12 h 42 min at the start of August to 12 h 18 min by month's end. Set against the rest of the year, August is Roi Et's 12th-clearest and 7th-windiest month. For the whole year in context, see Roi Et's year-round climate.

Daytime high: 32°; 7th warmest
Overnight low: 25°; 8th coldest
Rainfall: 240 mm; 25.2 wet days
Daylight: 12 h 30 min; 5:53 AM – 6:26 PM
Cloud cover: 91%; 12th clearest
Wind: 10 km/h; 7th windiest
Solar energy: 4.51 kWh/m²
Travel score: 2.5; out of 10

Roi Et is town in Roi Et province, Thailand.

Density: 3,382/km²; people per km²
Founded: 1937

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

← July Roi Et year-round climate September →Best places to visit in August

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical August day in Roi Et reaches about 32°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, August runs on par with July and on par with September.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32
Avg low (°C)	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	25	25	25	25	25	25	25	25	25	25	25	25	25	25

	Avg high (°C)	Avg low (°C)
1	32	26
2	32	26
3	32	26
4	32	26
5	32	26
6	32	26
7	32	26
8	32	26
9	32	26
10	32	26
11	32	26
12	32	26
13	32	26
14	32	26
15	32	26
16	32	26
17	32	26
18	32	25
19	32	25
20	32	25
21	32	25
22	32	25
23	32	25
24	32	25
25	32	25
26	32	25
27	32	25
28	32	25
29	32	25
30	32	25
31	32	25

How August really feels in Roi Et

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

11 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Roi Et 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.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	31° / 18°	6	1.6	11.2	5.9
Feb	33° / 20°	11	2.1	11.5	4.6
Mar	35° / 24°	37	6.5	11.9	2.9
Apr	36° / 26°	66	11.3	12.4	2.1
May	34° / 26°	180	21.3	12.7	2.0
Jun	33° / 26°	169	21.2	12.9	2.2
Jul	33° / 26°	207	23.5	12.9	2.4
Aug	32° / 25°	240	25.2	12.5	2.5
Sep	32° / 25°	253	24.5	12.1	2.7
Oct	31° / 24°	109	12.5	11.6	4.0
Nov	31° / 22°	24	3.5	11.3	5.2
Dec	30° / 19°	5	1.2	11.1	6.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% 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 93%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	6	6	6	6	5	5	5	5	5	7	7	7	7	7	7	8	9	9	9	9	9	9	9	9	9	9	9	8	8	8	7
Cloudier (%)	94	94	94	94	95	95	95	95	95	93	93	93	93	93	93	92	91	91	91	91	91	91	91	91	91	91	91	92	92	92	93

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	7	93
11	7	93
12	7	93
13	7	93
14	7	93
15	7	93
16	8	92
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	8	92
29	8	92
30	8	92
31	7	93

Chance of precipitation in August

Any precipitation

Roi Et gets around 240 mm of rain over 25.2 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 82% and peaks near 87% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	82	81	81	80	79	79	78	78	78	78	78	78	78	78	79	79	80	81	82	83	83	84	85	85	86	86	87	87	87	87	87

	Rain chance (%)
1	82
2	81
3	81
4	80
5	79
6	79
7	78
8	78
9	78
10	78
11	78
12	78
13	78
14	78
15	79
16	79
17	80
18	81
19	82
20	83
21	83
22	84
23	85
24	85
25	86
26	86
27	87
28	87
29	87
30	87
31	87

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 69% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Oppressive (%)	41	41	41	42	42	42	42	42	41	41	40	39	38	37	36	34	32	31	29	27	25	23	21	20	18	17	16	15	14	13	13
Miserable (%)	59	59	59	58	58	58	58	58	59	59	60	61	62	63	64	66	68	69	71	73	75	77	79	80	82	83	84	85	86	87	87

	Oppressive (%)	Miserable (%)
1	41	59
2	41	59
3	41	59
4	42	58
5	42	58
6	42	58
7	42	58
8	42	58
9	41	59
10	41	59
11	40	60
12	39	61
13	38	62
14	37	63
15	36	64
16	34	66
17	32	68
18	31	69
19	29	71
20	27	73
21	25	75
22	23	77
23	21	79
24	20	80
25	18	82
26	17	83
27	16	84
28	15	85
29	14	86
30	13	87
31	13	87

Wind in August

Winds average 10 km/h in August.

Across August, daily wind ranges from about 8 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	11	11	11	11	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	9	9	9	9	9	9	9	9	8	8	8	8
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	11	calm
2	11	calm
3	11	calm
4	11	calm
5	11	calm
6	11	calm
7	11	calm
8	11	calm
9	11	calm
10	11	calm
11	11	calm
12	11	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	9	calm
21	9	calm
22	9	calm
23	9	calm
24	9	calm
25	9	calm
26	9	calm
27	9	calm
28	8	calm
29	8	calm
30	8	calm
31	8	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 42 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 24 minutes over August. Sunrise moves from 5:50 AM to 5:55 AM, and sunset from 6:33 PM to 6:15 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	12.7	12.7	12.7	12.7	12.7	12.7	12.7	12.6	12.6	12.6	12.6	12.6	12.6	12.6	12.6	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.3	12.3
Sunrise (AM)	5:50	5:50	5:50	5:50	5:51	5:51	5:51	5:51	5:52	5:52	5:52	5:52	5:53	5:53	5:53	5:53	5:53	5:54	5:54	5:54	5:54	5:54	5:54	5:55	5:55	5:55	5:55	5:55	5:55	5:55	5:55
Sunset (PM)	6:33	6:33	6:32	6:32	6:32	6:31	6:31	6:30	6:30	6:29	6:29	6:28	6:28	6:27	6:26	6:26	6:25	6:25	6:24	6:23	6:23	6:22	6:21	6:21	6:20	6:19	6:18	6:18	6:17	6:16	6:15

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.7	5:50	6:33
2	12.7	5:50	6:33
3	12.7	5:50	6:32
4	12.7	5:50	6:32
5	12.7	5:51	6:32
6	12.7	5:51	6:31
7	12.7	5:51	6:31
8	12.6	5:51	6:30
9	12.6	5:52	6:30
10	12.6	5:52	6:29
11	12.6	5:52	6:29
12	12.6	5:52	6:28
13	12.6	5:53	6:28
14	12.6	5:53	6:27
15	12.6	5:53	6:26
16	12.5	5:53	6:26
17	12.5	5:53	6:25
18	12.5	5:54	6:25
19	12.5	5:54	6:24
20	12.5	5:54	6:23
21	12.5	5:54	6:23
22	12.5	5:54	6:22
23	12.4	5:54	6:21
24	12.4	5:55	6:21
25	12.4	5:55	6:20
26	12.4	5:55	6:19
27	12.4	5:55	6:18
28	12.4	5:55	6:18
29	12.4	5:55	6:17
30	12.3	5:55	6:16
31	12.3	5:55	6:15

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.51 kWh/m².

For context, solar energy here swings from a low near 4.47 kWh/m² to a high of 6.16 kWh/m² in April across the year — August's 4.51 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.5	4.5	4.5	4.5	4.5	4.5	4.4	4.4	4.4	4.4	4.4	4.4
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.5	Bright
2	4.5	Bright
3	4.5	Bright
4	4.5	Bright
5	4.5	Bright
6	4.5	Bright
7	4.5	Bright
8	4.5	Bright
9	4.6	Bright
10	4.6	Bright
11	4.6	Bright
12	4.6	Bright
13	4.6	Bright
14	4.6	Bright
15	4.6	Bright
16	4.6	Bright
17	4.6	Bright
18	4.6	Bright
19	4.6	Bright
20	4.5	Bright
21	4.5	Bright
22	4.5	Bright
23	4.5	Bright
24	4.5	Bright
25	4.5	Bright
26	4.4	Bright
27	4.4	Bright
28	4.4	Bright
29	4.4	Bright
30	4.4	Bright
31	4.4	Bright

Planning a trip in August

Hazard calendar for Roi Et

In seasonPeak

In August, Roi Et sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Roi Et's monsoon runs May–September, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is August a good time to visit Roi Et?

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

2.5

Sightseeing

8th-best month of the year

4.0

Beach & pool

12th-best month of the year

August is a weaker month for outdoor sightseeing in Roi Et.

What to pack for Roi Et in August

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

In August, Roi Et sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Roi Et 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 Roi Et peaks around August 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 at about 8 (very high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	9	11	12	10	11	12	13	13	12	11	8	8
Level	Very high	Extreme	Extreme	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	9	Very high
Feb	11	Extreme
Mar	12	Extreme
Apr	10	Very high
May	11	Extreme
Jun	12	Extreme
Jul	13	Extreme
Aug	13	Extreme
Sep	12	Extreme
Oct	11	Extreme
Nov	8	Very high
Dec	8	Very high

Air quality in Roi Et 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 Roi Et is worst in March — around 52 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (December, 20 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	28	40	52	41	30	22	24	25	28	28	23	20
Level	Moderate	Poor	Poor	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	28	Moderate
Feb	40	Poor
Mar	52	Poor
Apr	41	Poor
May	30	Moderate
Jun	22	Moderate
Jul	24	Moderate
Aug	25	Moderate
Sep	28	Moderate
Oct	28	Moderate
Nov	23	Moderate
Dec	20	Moderate

Location & terrain

Where is Roi Et?

Roi Et sits at 16.1°N, 103.7°E, 148 m above sea level, in Thailand. The nearest listed city is Ban Selaphum, 32 km away.

Topography around Roi Et

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

Within 3 km, the terrain around Roi Et has only modest variations in elevation — a maximum elevation change of 30 m around an average of 147 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 61 m; within 80 km, significant variations in elevation — a maximum elevation change of 385 m.

The land around Roi Et is covered by artificial surfaces (41%) and trees (34%) within 3 km, cropland (76%) within 16 km, and cropland (79%) within 80 km.

3 km

30 m

artificial surfaces 41%

16 km

61 m

cropland 76%

80 km

385 m

cropland 79%

treesgrasslandcroplandartificial surfaceswater

← July Roi Et year-round climate September →Best places to visit in August

August weather nearby: Ban Selaphum 32 km · Kamalasai 32 km · Maha Sarakham 40 km · Kalasin 45 km · Kaset Wisai 45 km · Yasothon 60 km · Kuchinarai 69 km · Nong Kung Si 76 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

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 Roi Et (16.0567°, 103.6531°, elevation 148 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. 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).

	Avg high (°C)	Avg low (°C)
1	32	26
2	32	26
3	32	26
4	32	26
5	32	26
6	32	26
7	32	26
8	32	26
9	32	26
10	32	26
11	32	26
12	32	26
13	32	26
14	32	26
15	32	26
16	32	26
17	32	26
18	32	25
19	32	25
20	32	25
21	32	25
22	32	25
23	32	25
24	32	25
25	32	25
26	32	25
27	32	25
28	32	25
29	32	25
30	32	25
31	32	25

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	7	93
11	7	93
12	7	93
13	7	93
14	7	93
15	7	93
16	8	92
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	8	92
29	8	92
30	8	92
31	7	93

	Rain chance (%)
1	82
2	81
3	81
4	80
5	79
6	79
7	78
8	78
9	78
10	78
11	78
12	78
13	78
14	78
15	79
16	79
17	80
18	81
19	82
20	83
21	83
22	84
23	85
24	85
25	86
26	86
27	87
28	87
29	87
30	87
31	87

	Oppressive (%)	Miserable (%)
1	41	59
2	41	59
3	41	59
4	42	58
5	42	58
6	42	58
7	42	58
8	42	58
9	41	59
10	41	59
11	40	60
12	39	61
13	38	62
14	37	63
15	36	64
16	34	66
17	32	68
18	31	69
19	29	71
20	27	73
21	25	75
22	23	77
23	21	79
24	20	80
25	18	82
26	17	83
27	16	84
28	15	85
29	14	86
30	13	87
31	13	87

	Avg high (°C)	Avg low (°C)
1	32	26
2	32	26
3	32	26
4	32	26
5	32	26
6	32	26
7	32	26
8	32	26
9	32	26
10	32	26
11	32	26
12	32	26
13	32	26
14	32	26
15	32	26
16	32	26
17	32	26
18	32	25
19	32	25
20	32	25
21	32	25
22	32	25
23	32	25
24	32	25
25	32	25
26	32	25
27	32	25
28	32	25
29	32	25
30	32	25
31	32	25

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	7	93
11	7	93
12	7	93
13	7	93
14	7	93
15	7	93
16	8	92
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	8	92
29	8	92
30	8	92
31	7	93

	Rain chance (%)
1	82
2	81
3	81
4	80
5	79
6	79
7	78
8	78
9	78
10	78
11	78
12	78
13	78
14	78
15	79
16	79
17	80
18	81
19	82
20	83
21	83
22	84
23	85
24	85
25	86
26	86
27	87
28	87
29	87
30	87
31	87

	Oppressive (%)	Miserable (%)
1	41	59
2	41	59
3	41	59
4	42	58
5	42	58
6	42	58
7	42	58
8	42	58
9	41	59
10	41	59
11	40	60
12	39	61
13	38	62
14	37	63
15	36	64
16	34	66
17	32	68
18	31	69
19	29	71
20	27	73
21	25	75
22	23	77
23	21	79
24	20	80
25	18	82
26	17	83
27	16	84
28	15	85
29	14	86
30	13	87
31	13	87

	Avg high (°C)	Avg low (°C)
1	32	26
2	32	26
3	32	26
4	32	26
5	32	26
6	32	26
7	32	26
8	32	26
9	32	26
10	32	26
11	32	26
12	32	26
13	32	26
14	32	26
15	32	26
16	32	26
17	32	26
18	32	25
19	32	25
20	32	25
21	32	25
22	32	25
23	32	25
24	32	25
25	32	25
26	32	25
27	32	25
28	32	25
29	32	25
30	32	25
31	32	25

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	7	93
11	7	93
12	7	93
13	7	93
14	7	93
15	7	93
16	8	92
17	9	91
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	8	92
29	8	92
30	8	92
31	7	93

	Rain chance (%)
1	82
2	81
3	81
4	80
5	79
6	79
7	78
8	78
9	78
10	78
11	78
12	78
13	78
14	78
15	79
16	79
17	80
18	81
19	82
20	83
21	83
22	84
23	85
24	85
25	86
26	86
27	87
28	87
29	87
30	87
31	87

	Oppressive (%)	Miserable (%)
1	41	59
2	41	59
3	41	59
4	42	58
5	42	58
6	42	58
7	42	58
8	42	58
9	41	59
10	41	59
11	40	60
12	39	61
13	38	62
14	37	63
15	36	64
16	34	66
17	32	68
18	31	69
19	29	71
20	27	73
21	25	75
22	23	77
23	21	79
24	20	80
25	18	82
26	17	83
27	16	84
28	15	85
29	14	86
30	13	87
31	13	87