Sadao weather in January

In January, Sadao sees average daytime highs of 31°C and overnight lows near 23°C, with 68 mm of rain across 9.7 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 30°C in the first days to 32°C by the end. The sky is clear or mostly clear about 16% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of January to 11 h 42 min by month's end. Set against the rest of the year, January is Sadao's 3rd-clearest and 1st-windiest month. For the whole year in context, see Sadao's year-round climate.

Daytime high
31°
9th warmest
Overnight low
23°
2nd coldest
Rainfall
68 mm
9.7 wet days
Daylight
11 h 42 min
6:38 AM – 6:17 PM
Cloud cover
69%
3rd clearest
Wind
11 km/h
1st windiest
Solar energy
5.12 kWh/m²
Travel score
4.3
out of 10

Sadao is town in Songkhla 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 30°C in the first days to 32°C by the end.

A typical January day in Sadao reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, January runs about 2°C warmer than December and about 2°C cooler than February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203223
213223
223223
233223
243223
253223
263223
273223
283223
293223
303223
313223

How January really feels in Sadao

Once humidity and wind are folded in, January 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
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.

Sadao weather by month

How January compares with the rest of the year at a glance. January is the 9th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°689.711.74.3
Feb33° / 23°386.111.83.6
Mar34° / 24°10213122.7
Apr34° / 24°14720.112.12.3
May33° / 25°1612412.32.3
Jun32° / 25°12020.612.42.6
Jul32° / 24°12620.912.32.8
Aug32° / 24°1392212.22.7
Sep31° / 24°17825122.6
Oct31° / 24°27428.511.92.5
Nov30° / 24°27926.111.72.9
Dec30° / 23°19618.411.63.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 65%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22674
32971
42971
53169
63268
73367
83466
93466
103466
113565
123565
133565
143664
153664
163664
173565
183565
193565
203664
213664
223664
233565
243664
253664
263862
273862
283961
294060
304159
314159

Chance of precipitation in January

Any precipitation

Sadao gets around 68 mm of rain over 9.7 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 31% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
241
340
439
538
637
736
834
933
1032
1132
1231
1330
1429
1529
1629
1728
1828
1928
2029
2129
2229
2329
2429
2528
2628
2727
2826
2925
3024
3123

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 72% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10108010
20108010
3011809
4011809
5012799
6012808
7013798
8014788
9014788
10015787
11017767
12018757
13019756
14020746
15021736
16022735
17023725
18024715
19025705
20026695
21028675
22029674
23029674
24130654
25131644
26132643
27133633
28133633
29134623
30135622
31136612

Wind in January

Winds average 11 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 36 min at the start of January to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over January. Sunrise moves from 6:33 AM to 6:40 AM, and sunset from 6:10 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:336:10
211.66:336:11
311.66:346:11
411.66:346:12
511.66:346:12
611.66:356:13
711.66:356:13
811.66:366:13
911.66:366:14
1011.66:366:14
1111.66:376:15
1211.66:376:15
1311.66:376:16
1411.66:376:16
1511.76:386:17
1611.76:386:17
1711.76:386:18
1811.76:386:18
1911.76:396:18
2011.76:396:19
2111.76:396:19
2211.76:396:20
2311.76:396:20
2411.76:406:20
2511.76:406:21
2611.76:406:21
2711.76:406:22
2811.76:406:22
2911.76:406:22
3011.76:406:23
3111.76:406:23

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.12 kWh/m².

For context, solar energy here swings from a low near 4.12 kWh/m² to a high of 6.1 kWh/m² in March across the year — January's 5.12 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.7Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.9Bright
94.9Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.1Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in January

Hazard calendar for Sadao

In seasonPeak

In January, Sadao sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

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

Sadao's rainy season runs July–December, 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 January a good time to visit Sadao?

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

4.3
Sightseeing
1st-best month of the year
6.4
Beach & pool
2nd-best month of the year

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

What to pack for Sadao in January

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

In January, Sadao sees daytime highs around 31°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Sadao in January

The nearest coast averages about 28°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 44 km away) is warmest in May at about 31°C and coldest in January near 28°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
Jan28Tropical
Feb29Tropical
Mar30Tropical
Apr30Tropical
May31Tropical
Jun31Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Sadao in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sadao peaks around February 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 21UV 14Nov 21UV 11
UV index (midday)Level
Jan11Extreme
Feb14Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Sadao 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 Sadao is worst in October — around 27 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 1227 µg/m³Feb 1217 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb17Moderate
Mar21Moderate
Apr27Moderate
May26Moderate
Jun27Moderate
Jul26Moderate
Aug24Moderate
Sep26Moderate
Oct27Moderate
Nov23Moderate
Dec18Moderate
Location & terrain

Where is Sadao?

Sadao sits at 6.6°N, 100.4°E, 50 m above sea level, in Thailand. The nearest listed city is Changloon, 23 km away.

Topography around Sadao

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

Within 3 km, the terrain around Sadao has only modest variations in elevation — a maximum elevation change of 184 m around an average of 49 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 343 m; within 80 km, large variations in elevation — a maximum elevation change of 994 m.

The land around Sadao is covered by trees (78%) within 3 km, trees (84%) within 16 km, and trees (62%) and water (25%) within 80 km.

3 km
184 m
16 km
343 m
80 km
994 m
treesgrasslandcroplandartificial surfaceswatermangroves
January weather nearby: Changloon 23 km · Kampung Hutan Arau 28 km · Padang Besar 32 km · Kangar 33 km · Satun 39 km · Jitra 41 km · Hat Yai 42 km · Anak Bukit 51 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 Sadao (6.6388°, 100.4234°, elevation 50 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).