Bo Phloi weather in January

In January, Bo Phloi sees average daytime highs of 32°C and overnight lows near 21°C, with 14 mm of rain across 2.5 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 10th-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 56% of the time in January, and the air most often feels humid.

Daylight stretches from about 11 h 12 min at the start of January to 11 h 24 min by month's end. Set against the rest of the year, January is Bo Phloi's 2nd-clearest and 6th-windiest month. For the whole year in context, see Bo Phloi's year-round climate.

Daytime high
32°
9th warmest
Overnight low
21°
1st coldest
Rainfall
14 mm
2.5 wet days
Daylight
11 h 12 min
6:54 AM – 6:08 PM
Cloud cover
41%
2nd clearest
Wind
8 km/h
6th windiest
Solar energy
5.06 kWh/m²
Travel score
5.1
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical January day in Bo Phloi reaches about 32°C in the afternoon and slips back to 21°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 34°C. Set against its neighbours, January runs about 1°C warmer than December and about 2°C cooler than February.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13120
23120
33120
43120
53120
63120
73120
83120
93120
103120
113120
123220
133220
143220
153220
163221
173221
183221
193221
203221
213221
223221
233221
243221
253221
263221
273221
283221
293221
303221
313321

How January really feels in Bo Phloi

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.

Bo Phloi weather by month

How January compares with the rest of the year at a glance. January is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 21°142.511.25.1
Feb34° / 22°142.811.53.7
Mar36° / 24°417.411.92.3
Apr37° / 26°8213.812.31.6
May35° / 26°13521.512.71.8
Jun33° / 26°12921.312.82.2
Jul32° / 25°16122.612.82.6
Aug32° / 25°1572312.52.7
Sep32° / 25°21224.312.12.5
Oct31° / 24°1702011.73.4
Nov31° / 23°366.111.34.8
Dec31° / 21°91.811.25.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 17% of January, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
37030
47030
57030
67030
77030
87030
97030
107030
117030
127030
137030
147129
157129
167228
177228
187327
197426
207525
217525
227624
237624
247723
257822
267822
277921
287921
298020
308119
318119

Chance of precipitation in January

Any precipitation

Bo Phloi gets around 14 mm of rain over 2.5 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 8% and peaks near 9% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
15
26
36
46
57
67
77
87
98
108
118
128
138
148
158
168
178
188
198
208
218
228
239
249
259
269
279
289
299
308
318

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 30% of days. Sticky, muggy-or-worse air turns up on roughly 47% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
192229319
2822293110
3821303110
4721303111
5720303111
6720303112
7620313112
8619313113
9619313113
10618313114
11617313114
12617313015
13616323016
14616323016
15715323017
16715323017
17714322918
18714322918
19714322919
20714312919
21714312920
22613312821
23613312821
24613312822
25613312822
26713302723
27713292724
28713292724
29714282724
30814272725
31814272725

Wind in January

Winds average 8 km/h in January.

Across January, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
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 12 min at the start of January to 11 h 24 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 6:50 AM to 6:54 AM, and sunset from 6:00 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:506:00
211.26:506:01
311.26:516:01
411.26:516:02
511.26:516:02
611.26:526:03
711.26:526:03
811.26:526:04
911.26:536:04
1011.26:536:05
1111.26:536:06
1211.26:536:06
1311.26:546:07
1411.26:546:07
1511.26:546:08
1611.26:546:08
1711.26:546:09
1811.36:546:09
1911.36:546:10
2011.36:556:11
2111.36:556:11
2211.36:556:12
2311.36:556:12
2411.36:556:13
2511.36:556:13
2611.36:556:14
2711.36:556:14
2811.36:556:15
2911.36:556:15
3011.46:556:16
3111.46:546:16

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.06 kWh/m².

For context, solar energy here swings from a low near 4.24 kWh/m² to a high of 6.26 kWh/m² in April across the year — January's 5.06 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in January

Hazard calendar for Bo Phloi

In seasonPeak

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

Bo Phloi'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 Bo Phloi?

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

5.1
Sightseeing
2nd-best month of the year
7.9
Beach & pool
2nd-best month of the year

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

What to pack for Bo Phloi in January

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

In January, Bo Phloi sees daytime highs around 32°C and nights near 21°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Bo Phloi in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bo Phloi peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 16UV 14Dec 12UV 8
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar13Extreme
Apr11Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Bo Phloi 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 Bo Phloi is worst in March — around 57 µg/m³ PM2.5 (unhealthy), about 2.7× the cleanest month (June, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorPoorModerateMar 1356 µg/m³Jun 2221 µg/m³
PM2.5 (µg/m³)Level
Jan45Poor
Feb53Poor
Mar57Unhealthy
Apr43Poor
May30Moderate
Jun21Moderate
Jul22Moderate
Aug22Moderate
Sep26Moderate
Oct33Moderate
Nov32Moderate
Dec33Moderate
Location & terrain

Where is Bo Phloi?

Bo Phloi sits at 14.3°N, 99.5°E, 96 m above sea level, in Thailand. The nearest listed city is Kanchanaburi, 36 km away.

Topography around Bo Phloi

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

Within 3 km, the terrain around Bo Phloi has only modest variations in elevation — a maximum elevation change of 244 m around an average of 104 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 574 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,266 m.

The land around Bo Phloi is covered by trees (50%) and grassland (20%) within 3 km, cropland (55%) and trees (31%) within 16 km, and trees (47%) and cropland (44%) within 80 km.

3 km
244 m
16 km
574 m
80 km
1,266 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Kanchanaburi 36 km · Tha Muang 43 km · Tha Maka 55 km · Suphan Buri 67 km · Ban Pong 69 km · Bang Len 78 km · Chom Bueng 79 km · Photharam 79 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 Bo Phloi (14.3252°, 99.5147°, elevation 96 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).