Si Satchanalai weather in January

In January, Si Satchanalai sees average daytime highs of 31°C and overnight lows near 18°C, with 15 mm of rain across 2.1 wet days and about 11.1 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 31°C in the first days to 32°C by the end. The sky is clear or mostly clear about 70% of the time in January, and the air most often feels humid.

Daylight stretches from about 11 hours at the start of January to 11 h 12 min by month's end. Set against the rest of the year, January is Si Satchanalai's 3rd-clearest and 9th-windiest month. For the whole year in context, see Si Satchanalai's year-round climate.

Daytime high
31°
11th warmest
Overnight low
18°
1st coldest
Rainfall
15 mm
2.1 wet days
Daylight
11 h 06 min
6:59 AM – 6:02 PM
Cloud cover
30%
3rd clearest
Wind
5 km/h
9th windiest
Solar energy
4.73 kWh/m²
Travel score
5.4
out of 10

Si Satchanalai is town in Sukhothai province, Thailand.

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 31°C in the first days to 32°C by the end.

A typical January day in Si Satchanalai reaches about 31°C in the afternoon and slips back to 18°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, January runs on par with December and about 3°C cooler than February.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13118
23118
33118
43118
53118
63118
73118
83118
93118
103118
113118
123118
133118
143118
153118
163118
173218
183218
193218
203218
213218
223218
233218
243218
253219
263219
273219
283219
293219
303219
313219

How January really feels in Si Satchanalai

Once humidity and wind are folded in, January averages 21 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
21
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Si Satchanalai weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 18°152.111.15.4
Feb34° / 20°101.111.43.8
Mar37° / 23°263.511.92.1
Apr38° / 26°568.312.41.2
May36° / 26°21119.612.81.7
Jun34° / 26°20122.1132.1
Jul33° / 26°21523.312.92.3
Aug32° / 26°28025.712.62.4
Sep32° / 25°25923.912.12.4
Oct32° / 24°12914.511.63.5
Nov32° / 22°27411.24.8
Dec31° / 19°121.7115.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18119
28020
38020
47921
57921
67921
77921
87921
98020
108020
118119
128119
138218
148317
158317
168416
178515
188515
198614
208614
218614
228614
238614
248614
258713
268713
278713
288713
298713
308713
318812

Chance of precipitation in January

Any precipitation

Si Satchanalai gets around 15 mm of rain over 2.1 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 8% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
18
28
38
48
58
68
78
88
98
108
117
127
137
146
156
165
175
185
195
205
215
225
235
245
255
266
276
286
296
306
316

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the humid band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 48% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
14163236111
24153237111
34153337111
43143437111
53133537111
63133637111
73133736111
82133736111
92123836111
102123835111
112123935101
122123935101
132124035101
142124034101
153124034101
163124034100
173124034110
183123935110
193123835110
204123835120
214113736120
224113636120
234113536130
244113537130
255103437140
265103437140
275103337150
285113237150
296113237150
306113137150
316123137150

Wind in January

Winds average 5 km/h in January.

Across January, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 hours at the start of January to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over January. Sunrise moves from 6:55 AM to 6:58 AM, and sunset from 5:53 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:555:53
211.06:555:54
311.06:565:54
411.06:565:55
511.06:565:55
611.06:575:56
711.06:575:57
811.06:575:57
911.06:575:58
1011.06:585:58
1111.06:585:59
1211.06:586:00
1311.06:586:00
1411.06:586:01
1511.06:586:01
1611.16:596:02
1711.16:596:03
1811.16:596:03
1911.16:596:04
2011.16:596:04
2111.16:596:05
2211.16:596:06
2311.16:596:06
2411.16:596:07
2511.16:596:07
2611.26:596:08
2711.26:596:08
2811.26:586:09
2911.26:586:10
3011.26:586:10
3111.26:586:11

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.73 kWh/m².

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 — January's 4.73 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.1Bright
Planning a trip in January

Hazard calendar for Si Satchanalai

In seasonPeak

None of Si Satchanalai's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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 January a good time to visit Si Satchanalai?

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

5.4
Sightseeing
2nd-best month of the year
8.2
Beach & pool
2nd-best month of the year

January is a reasonable time to visit Si Satchanalai for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Si Satchanalai in January

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

In January, Si Satchanalai sees daytime highs around 31°C and nights near 18°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Si Satchanalai in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 8 — enough to warrant sun protection. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJun 19UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar9Very high
Apr11Extreme
May12Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7Very high

Air quality in Si Satchanalai in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January 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).

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorPoorModeratePoorMar 1556 µg/m³Jun 2221 µg/m³
PM2.5 (µg/m³)Level
Jan43Poor
Feb50Poor
Mar58Unhealthy
Apr47Poor
May29Moderate
Jun21Moderate
Jul22Moderate
Aug23Moderate
Sep26Moderate
Oct31Moderate
Nov33Moderate
Dec37Poor
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
16 km
352 m
80 km
1,381 m
treesgrasslandcroplandartificial surfaceswater
January 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
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 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).