Si Satchanalai weather in August

In August, Si Satchanalai sees average daytime highs of 32°C and overnight lows near 26°C, with 280 mm of rain across 25.7 wet days and about 12.6 hours of daylight. It is the 9th-warmest and 1st-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 1% of the time in August, and the air most often feels miserable.

Daylight stretches from about 12 h 48 min at the start of August to 12 h 24 min by month's end. Set against the rest of the year, August is Si Satchanalai's 11th-clearest and 6th-windiest month. For the whole year in context, see Si Satchanalai's year-round climate.

Daytime high: 32°; 9th warmest
Overnight low: 26°; 8th coldest
Rainfall: 280 mm; 25.7 wet days
Daylight: 12 h 36 min; 6:07 AM – 6:43 PM
Cloud cover: 92%; 11th clearest
Wind: 6 km/h; 6th windiest
Solar energy: 3.99 kWh/m²
Travel score: 2.4; out of 10

Si Satchanalai is town in Sukhothai province, Thailand.

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

← July Si Satchanalai 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 Si Satchanalai reaches about 32°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 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	26	26	26	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	26
19	32	26
20	32	26
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 Si Satchanalai

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 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.

Si Satchanalai weather by month

How August compares with the rest of the year at a glance. August is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	31° / 18°	15	2.1	11.1	5.4
Feb	34° / 20°	10	1.1	11.4	3.8
Mar	37° / 23°	26	3.5	11.9	2.1
Apr	38° / 26°	56	8.3	12.4	1.2
May	36° / 26°	211	19.6	12.8	1.7
Jun	34° / 26°	201	22.1	13	2.1
Jul	33° / 26°	215	23.3	12.9	2.3
Aug	32° / 26°	280	25.7	12.6	2.4
Sep	32° / 25°	259	23.9	12.1	2.4
Oct	32° / 24°	129	14.5	11.6	3.5
Nov	32° / 22°	27	4	11.2	4.8
Dec	31° / 19°	12	1.7	11	5.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 4% of August, with mostly cloudy or overcast conditions the remaining 95%.

	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 (%)	3	3	3	3	4	4	4	4	4	5	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6
Cloudier (%)	97	97	97	97	96	96	96	96	96	95	95	95	95	94	94	94	94	94	94	94	94	94	94	94	94	94	94	94	94	94	94

	Clearer (%)	Cloudier (%)
1	3	97
2	3	97
3	3	97
4	3	97
5	4	96
6	4	96
7	4	96
8	4	96
9	4	96
10	5	95
11	5	95
12	5	95
13	5	95
14	6	94
15	6	94
16	6	94
17	6	94
18	6	94
19	6	94
20	6	94
21	6	94
22	6	94
23	6	94
24	6	94
25	6	94
26	6	94
27	6	94
28	6	94
29	6	94
30	6	94
31	6	94

Chance of precipitation in August

Any precipitation

Si Satchanalai gets around 280 mm of rain over 25.7 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 83% and peaks near 85% on the wettest days.

	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 (%)	85	85	85	84	84	84	83	83	83	82	82	82	82	81	81	81	81	81	81	81	82	82	82	83	83	83	83	83	83	83	84

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

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 88% 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 (%)	19	19	18	18	18	18	18	18	18	18	17	17	16	15	14	14	13	12	11	10	9	9	8	7	6	5	5	4	4	3	3
Miserable (%)	81	81	82	82	82	82	82	82	82	82	83	83	84	85	86	86	87	88	89	90	91	91	92	93	94	95	95	96	96	97	97

	Oppressive (%)	Miserable (%)
1	19	81
2	19	81
3	18	82
4	18	82
5	18	82
6	18	82
7	18	82
8	18	82
9	18	82
10	18	82
11	17	83
12	17	83
13	16	84
14	15	85
15	14	86
16	14	86
17	13	87
18	12	88
19	11	89
20	10	90
21	9	91
22	9	91
23	8	92
24	7	93
25	6	94
26	5	95
27	5	95
28	4	96
29	4	96
30	3	97
31	3	97

Wind in August

Winds average 6 km/h in August.

Across August, daily wind ranges from about 5 km/h on the calmest days to 7 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)	7	7	7	7	7	7	7	7	7	7	7	7	7	6	6	6	6	6	6	6	6	6	6	6	5	5	5	5	5	5	5
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	7	calm
2	7	calm
3	7	calm
4	7	calm
5	7	calm
6	7	calm
7	7	calm
8	7	calm
9	7	calm
10	7	calm
11	7	calm
12	7	calm
13	7	calm
14	6	calm
15	6	calm
16	6	calm
17	6	calm
18	6	calm
19	6	calm
20	6	calm
21	6	calm
22	6	calm
23	6	calm
24	6	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm
31	5	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 48 min at the start of August to 12 h 24 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 6:03 AM to 6:10 AM, and sunset from 6:51 PM to 6:32 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)	12.8	12.8	12.8	12.8	12.7	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	12.5	12.5	12.5	12.5	12.5	12.5	12.4	12.4	12.4	12.4	12.4	12.4
Sunrise (AM)	6:03	6:03	6:04	6:04	6:04	6:05	6:05	6:05	6:05	6:06	6:06	6:06	6:06	6:07	6:07	6:07	6:07	6:08	6:08	6:08	6:08	6:08	6:09	6:09	6:09	6:09	6:09	6:10	6:10	6:10	6:10
Sunset (PM)	6:51	6:50	6:50	6:50	6:49	6:49	6:48	6:48	6:47	6:47	6:46	6:45	6:45	6:44	6:44	6:43	6:42	6:42	6:41	6:40	6:40	6:39	6:38	6:37	6:37	6:36	6:35	6:34	6:34	6:33	6:32

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.8	6:03	6:51
2	12.8	6:03	6:50
3	12.8	6:04	6:50
4	12.8	6:04	6:50
5	12.7	6:04	6:49
6	12.7	6:05	6:49
7	12.7	6:05	6:48
8	12.7	6:05	6:48
9	12.7	6:05	6:47
10	12.7	6:06	6:47
11	12.7	6:06	6:46
12	12.7	6:06	6:45
13	12.6	6:06	6:45
14	12.6	6:07	6:44
15	12.6	6:07	6:44
16	12.6	6:07	6:43
17	12.6	6:07	6:42
18	12.6	6:08	6:42
19	12.6	6:08	6:41
20	12.5	6:08	6:40
21	12.5	6:08	6:40
22	12.5	6:08	6:39
23	12.5	6:09	6:38
24	12.5	6:09	6:37
25	12.5	6:09	6:37
26	12.4	6:09	6:36
27	12.4	6:09	6:35
28	12.4	6:10	6:34
29	12.4	6:10	6:34
30	12.4	6:10	6:33
31	12.4	6:10	6:32

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.99 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.99 kWh/m² to a high of 6.3 kWh/m² in April across the year — August's 3.99 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)	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	4.0	4.0	4.0	4.0	4.0	4.1	4.1	4.1	4.1	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.9	Moderate
2	3.9	Moderate
3	3.9	Moderate
4	3.9	Moderate
5	3.9	Moderate
6	3.9	Moderate
7	3.9	Moderate
8	3.9	Moderate
9	3.9	Moderate
10	3.9	Moderate
11	3.9	Moderate
12	3.9	Moderate
13	3.9	Moderate
14	3.9	Moderate
15	4.0	Moderate
16	4.0	Moderate
17	4.0	Bright
18	4.0	Bright
19	4.0	Bright
20	4.1	Bright
21	4.1	Bright
22	4.1	Bright
23	4.1	Bright
24	4.2	Bright
25	4.2	Bright
26	4.2	Bright
27	4.2	Bright
28	4.2	Bright
29	4.2	Bright
30	4.2	Bright
31	4.2	Bright

Planning a trip in August

Hazard calendar for Si Satchanalai

In seasonPeak

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

Si Satchanalai's monsoon runs May–October, 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 Si Satchanalai?

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

2.4

Sightseeing

6th-best month of the year

3.9

Beach & pool

11th-best month of the year

August is a weaker month for outdoor sightseeing in Si Satchanalai.

What to pack for Si Satchanalai in August

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

In August, Si Satchanalai sees daytime highs around 32°C and nights near 26°C. Pack light clothes and rain gear. About 26 days see rain.

light clothesrain gear

UV index in Si Satchanalai 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 Si Satchanalai peaks around June 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (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)	8	10	9	11	12	13	13	13	12	10	8	7
Level	Very high	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Very high

	UV index (midday)	Level
Jan	8	Very high
Feb	10	Very high
Mar	9	Very high
Apr	11	Extreme
May	12	Extreme
Jun	13	Extreme
Jul	13	Extreme
Aug	13	Extreme
Sep	12	Extreme
Oct	10	Very high
Nov	8	Very high
Dec	7	Very high

Air quality in Si Satchanalai 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 Si Satchanalai is worst in March — around 58 µg/m³ PM2.5 (unhealthy), about 2.8× the cleanest month (June, 21 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)	43	50	58	47	29	21	22	23	26	31	33	37
Level	Poor	Poor	Unhealthy	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Poor

	PM2.5 (µg/m³)	Level
Jan	43	Poor
Feb	50	Poor
Mar	58	Unhealthy
Apr	47	Poor
May	29	Moderate
Jun	21	Moderate
Jul	22	Moderate
Aug	23	Moderate
Sep	26	Moderate
Oct	31	Moderate
Nov	33	Moderate
Dec	37	Poor

Location & terrain

Where is Si Satchanalai?

Si Satchanalai sits at 17.5°N, 99.8°E, 77 m above sea level, in Thailand. The nearest listed city is Sawankhalok, 24 km away.

Topography around Si Satchanalai

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

Within 3 km, the terrain around Si Satchanalai has only modest variations in elevation — a maximum elevation change of 158 m around an average of 83 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 352 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,381 m.

The land around Si Satchanalai is covered by cropland (47%) and trees (39%) within 3 km, trees (48%) and cropland (48%) within 16 km, and trees (62%) and cropland (35%) within 80 km.

3 km

158 m

cropland 47%

16 km

352 m

trees 48%

80 km

1,381 m

trees 62%

treesgrasslandcroplandartificial surfaceswater

← July Si Satchanalai year-round climate September →Best places to visit in August

August weather nearby: Sawankhalok 24 km · Uttaradit 37 km · Ban Na 56 km · Sukhothai 57 km · Thoen 59 km · Den Chai 60 km · Phrae 81 km · Ban Tak 89 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 Si Satchanalai (17.5169°, 99.7598°, elevation 77 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	26
19	32	26
20	32	26
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	3	97
2	3	97
3	3	97
4	3	97
5	4	96
6	4	96
7	4	96
8	4	96
9	4	96
10	5	95
11	5	95
12	5	95
13	5	95
14	6	94
15	6	94
16	6	94
17	6	94
18	6	94
19	6	94
20	6	94
21	6	94
22	6	94
23	6	94
24	6	94
25	6	94
26	6	94
27	6	94
28	6	94
29	6	94
30	6	94
31	6	94

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

	Oppressive (%)	Miserable (%)
1	19	81
2	19	81
3	18	82
4	18	82
5	18	82
6	18	82
7	18	82
8	18	82
9	18	82
10	18	82
11	17	83
12	17	83
13	16	84
14	15	85
15	14	86
16	14	86
17	13	87
18	12	88
19	11	89
20	10	90
21	9	91
22	9	91
23	8	92
24	7	93
25	6	94
26	5	95
27	5	95
28	4	96
29	4	96
30	3	97
31	3	97

	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	26
19	32	26
20	32	26
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	3	97
2	3	97
3	3	97
4	3	97
5	4	96
6	4	96
7	4	96
8	4	96
9	4	96
10	5	95
11	5	95
12	5	95
13	5	95
14	6	94
15	6	94
16	6	94
17	6	94
18	6	94
19	6	94
20	6	94
21	6	94
22	6	94
23	6	94
24	6	94
25	6	94
26	6	94
27	6	94
28	6	94
29	6	94
30	6	94
31	6	94

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

	Oppressive (%)	Miserable (%)
1	19	81
2	19	81
3	18	82
4	18	82
5	18	82
6	18	82
7	18	82
8	18	82
9	18	82
10	18	82
11	17	83
12	17	83
13	16	84
14	15	85
15	14	86
16	14	86
17	13	87
18	12	88
19	11	89
20	10	90
21	9	91
22	9	91
23	8	92
24	7	93
25	6	94
26	5	95
27	5	95
28	4	96
29	4	96
30	3	97
31	3	97

	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	26
19	32	26
20	32	26
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	3	97
2	3	97
3	3	97
4	3	97
5	4	96
6	4	96
7	4	96
8	4	96
9	4	96
10	5	95
11	5	95
12	5	95
13	5	95
14	6	94
15	6	94
16	6	94
17	6	94
18	6	94
19	6	94
20	6	94
21	6	94
22	6	94
23	6	94
24	6	94
25	6	94
26	6	94
27	6	94
28	6	94
29	6	94
30	6	94
31	6	94

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

	Oppressive (%)	Miserable (%)
1	19	81
2	19	81
3	18	82
4	18	82
5	18	82
6	18	82
7	18	82
8	18	82
9	18	82
10	18	82
11	17	83
12	17	83
13	16	84
14	15	85
15	14	86
16	14	86
17	13	87
18	12	88
19	11	89
20	10	90
21	9	91
22	9	91
23	8	92
24	7	93
25	6	94
26	5	95
27	5	95
28	4	96
29	4	96
30	3	97
31	3	97