Ron Phibun weather in January

In January, Ron Phibun sees average daytime highs of 30°C and overnight lows near 22°C, with 89 mm of rain across 14.6 wet days and about 11.6 hours of daylight. It is the 10th-warmest and 11th-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 16% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 30 min at the start of January to 11 h 36 min by month's end. Set against the rest of the year, January is Ron Phibun's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Ron Phibun's year-round climate.

Daytime high
30°
10th warmest
Overnight low
22°
2nd coldest
Rainfall
89 mm
14.6 wet days
Daylight
11 h 36 min
6:43 AM – 6:17 PM
Cloud cover
67%
3rd clearest
Wind
7 km/h
2nd windiest
Solar energy
4.64 kWh/m²
Travel score
4.4
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

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

A typical January day in Ron Phibun reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, January runs on par with December and about 1°C cooler than February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
263022
273022
283022
293022
303122
313122

How January really feels in Ron Phibun

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.

Ron Phibun weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°8914.611.64.4
Feb31° / 22°519.711.74.2
Mar33° / 23°12113.911.93.3
Apr34° / 24°15019.712.22.4
May33° / 24°19925.712.42.2
Jun32° / 24°17023.812.52.6
Jul31° / 23°18325.212.42.7
Aug31° / 23°21226.412.32.6
Sep31° / 23°24827.1122.5
Oct31° / 23°31828.911.82.6
Nov30° / 23°27425.211.63.1
Dec29° / 22°16918.311.54.1

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 24% of January, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23565
33664
43763
53763
63862
73862
83961
93961
103961
113961
124060
133961
143961
154060
164060
174060
184060
194060
204159
214159
224159
234258
244258
254357
264357
274357
284456
294555
304654
314654

Chance of precipitation in January

Any precipitation

Ron Phibun gets around 89 mm of rain over 14.6 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 47% and peaks near 51% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
151
251
351
451
551
651
750
849
949
1048
1147
1247
1346
1446
1545
1645
1745
1845
1945
2045
2145
2245
2345
2445
2545
2645
2745
2844
2944
3043
3142

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 83% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1111844
2111844
3111844
4110854
5110863
6110863
7110863
8010873
9010873
10010873
11010873
12011863
13011863
14011863
15012853
16012853
17012853
18013843
19013843
20014833
21014833
22015823
23015823
24016822
25016822
26117802
27117802
28118792
29118792
30119782
31120772

Wind in January

Winds average 7 km/h in January.

Across January, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 30 min at the start of January to 11 h 36 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 6:38 AM to 6:45 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)
111.56:386:10
211.56:386:10
311.56:396:11
411.56:396:11
511.56:396:12
611.56:406:12
711.56:406:13
811.56:406:13
911.56:416:14
1011.66:416:14
1111.66:416:15
1211.66:426:15
1311.66:426:16
1411.66:426:16
1511.66:426:17
1611.66:436:17
1711.66:436:17
1811.66:436:18
1911.66:436:18
2011.66:446:19
2111.66:446:19
2211.66:446:20
2311.66:446:20
2411.66:446:21
2511.66:446:21
2611.66:446:21
2711.66:446:22
2811.66:456:22
2911.66:456:22
3011.66:456:23
3111.66:456:23

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.64 kWh/m².

For context, solar energy here swings from a low near 3.79 kWh/m² to a high of 5.88 kWh/m² in March across the year — January's 4.64 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.4Bright
74.4Bright
84.4Bright
94.5Bright
104.5Bright
114.5Bright
124.6Bright
134.6Bright
144.6Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.9Bright
254.9Bright
264.9Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.1Bright
Planning a trip in January

Hazard calendar for Ron Phibun

In seasonPeak

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

Ron Phibun sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

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

Is January a good time to visit Ron Phibun?

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

4.4
Sightseeing
1st-best month of the year
6.0
Beach & pool
2nd-best month of the year

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

What to pack for Ron Phibun in January

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

In January, Ron Phibun sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Ron Phibun 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 58 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
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Ron Phibun in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ron Phibun peaks around March 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 24UV 13Jan 10UV 10
UV index (midday)Level
Jan10Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Extreme

Air quality in Ron Phibun 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 Ron Phibun is worst in April — around 28 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1727 µg/m³Aug 1722 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb22Moderate
Mar24Moderate
Apr28Moderate
May25Moderate
Jun26Moderate
Jul24Moderate
Aug22Moderate
Sep24Moderate
Oct26Moderate
Nov25Moderate
Dec22Moderate
Location & terrain

Where is Ron Phibun?

Ron Phibun sits at 8.2°N, 99.9°E, 37 m above sea level, in Thailand. The nearest listed city is Thung Song, 19 km away.

Topography around Ron Phibun

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

Within 3 km, the terrain around Ron Phibun has significant variations in elevation — a maximum elevation change of 291 m around an average of 58 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,106 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,772 m.

The land around Ron Phibun is covered by trees (90%) within 3 km, trees (87%) within 16 km, and trees (68%) and water (24%) within 80 km.

3 km
291 m
16 km
1,106 m
80 km
1,772 m
treesgrasslandcroplandartificial surfaceswatermangroves
January weather nearby: Thung Song 19 km · Nakhon Si Thammarat 31 km · Pak Phanang 43 km · Huai Yot 50 km · Phatthalung 67 km · Ranot 68 km · Trang 74 km · Ban Na San 88 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 Ron Phibun (8.1791°, 99.8542°, elevation 37 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).