Kaset Wisai weather in December

In December, Kaset Wisai sees average daytime highs of 30°C and overnight lows near 19°C, with 6 mm of rain across 1.3 wet days and about 11.1 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 50% of the time in December, and the air most often feels humid.

Daylight stretches from about 11 h 06 min at the start of December to 11 h 06 min by month's end. Set against the rest of the year, December is Kaset Wisai's 4th-clearest and 1st-windiest month. For the whole year in context, see Kaset Wisai's year-round climate.

Daytime high
30°
12th warmest
Overnight low
19°
2nd coldest
Rainfall
6 mm
1.3 wet days
Daylight
11 h 06 min
6:30 AM – 5:34 PM
Cloud cover
42%
4th clearest
Wind
13 km/h
1st windiest
Solar energy
4.71 kWh/m²
Travel score
6.2
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical December day in Kaset Wisai reaches about 30°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 33°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13120
23120
33120
43120
53020
63020
73020
83020
93019
103019
113019
123019
133019
143019
153019
163019
173019
183019
193018
203018
213018
223018
233018
243018
253018
263018
273018
283018
293018
303018
313018

How December really feels in Kaset Wisai

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

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kaset Wisai weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 18°61.711.25.8
Feb33° / 20°112.211.54.4
Mar35° / 24°416.411.92.8
Apr36° / 26°6911.512.32.0
May35° / 26°17720.612.72.0
Jun34° / 26°15720.612.92.2
Jul33° / 26°19322.212.82.4
Aug32° / 26°23324.612.52.4
Sep32° / 25°26324.612.12.6
Oct31° / 24°12413.211.64.0
Nov31° / 22°263.611.35.2
Dec30° / 19°61.311.16.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26634
36733
46634
56634
66634
76733
86733
96733
106832
116931
126931
137030
147129
157228
167228
177327
187525
197525
207624
217624
227723
237723
247723
257822
267822
277822
287822
297822
307822
317723

Chance of precipitation in December

Any precipitation

Kaset Wisai gets around 6 mm of rain over 1.3 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 4% and peaks near 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
15
25
35
45
55
65
75
85
95
105
115
125
135
145
154
164
174
184
194
204
214
224
233
243
253
263
273
283
293
303
313

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1413293816
2414303715
3414313714
4415313613
5515323613
6516333512
7516343411
8617343410
961735339
1071835338
1171835328
1281935327
1391934316
14102034316
15112033315
16122132305
17132132305
18142131294
19152231284
20152231284
21162331273
22172331273
23172331263
24172431262
25172432252
26172432252
27172433251
28172434251
29162335251
30152335251
31152336251

Wind in December

Winds average 13 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 06 min at the start of December to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:21 AM to 6:36 AM, and sunset from 5:30 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:215:30
211.16:225:30
311.16:225:30
411.16:235:30
511.16:245:30
611.16:245:31
711.16:255:31
811.16:255:31
911.16:265:32
1011.16:265:32
1111.16:275:32
1211.16:275:33
1311.16:285:33
1411.16:295:33
1511.16:295:34
1611.16:305:34
1711.16:305:34
1811.16:315:35
1911.16:315:35
2011.16:325:36
2111.16:325:36
2211.16:335:37
2311.16:335:37
2411.16:335:38
2511.16:345:38
2611.16:345:39
2711.16:355:39
2811.16:355:40
2911.16:365:40
3011.16:365:41
3111.16:365:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.71 kWh/m².

For context, solar energy here swings from a low near 4.51 kWh/m² to a high of 6.19 kWh/m² in April across the year — December's 4.71 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Kaset Wisai

In seasonPeak

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

Kaset Wisai'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 December a good time to visit Kaset Wisai?

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

6.2
Sightseeing
1st-best month of the year
8.4
Beach & pool
1st-best month of the year

December is a reasonable time to visit Kaset Wisai for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kaset Wisai in December

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

In December, Kaset Wisai sees daytime highs around 30°C and nights near 19°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Kaset Wisai in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Kaset Wisai peaks around August 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 13UV 13Nov 23UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr10Very high
May11Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Kaset Wisai in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Kaset Wisai 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).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1751 µg/m³Dec 1320 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb40Poor
Mar52Poor
Apr41Poor
May30Moderate
Jun22Moderate
Jul24Moderate
Aug25Moderate
Sep28Moderate
Oct28Moderate
Nov23Moderate
Dec20Moderate
Location & terrain

Where is Kaset Wisai?

Kaset Wisai sits at 15.7°N, 103.6°E, 145 m above sea level, in Thailand. The nearest listed city is Roi Et, 45 km away.

Topography around Kaset Wisai

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

Within 3 km, the terrain around Kaset Wisai has only modest variations in elevation — a maximum elevation change of 33 m around an average of 132 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 37 m; within 80 km, only modest variations in elevation — a maximum elevation change of 133 m.

The land around Kaset Wisai is covered by cropland (65%) within 3 km, cropland (81%) within 16 km, and cropland (81%) within 80 km.

3 km
33 m
16 km
37 m
80 km
133 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Roi Et 45 km · Ban Selaphum 56 km · Yasothon 62 km · Maha Sarakham 66 km · Kamalasai 76 km · Surin 87 km · Kalasin 87 km · Buri Ram 90 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 Kaset Wisai (15.6556°, 103.5836°, elevation 145 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).