Bang Saphan weather in January

In January, Bang Saphan sees average daytime highs of 28°C and overnight lows near 23°C, with 44 mm of rain across 5.7 wet days and about 11.4 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 48% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 24 min at the start of January to 11 h 30 min by month's end. Set against the rest of the year, January is Bang Saphan's 2nd-clearest and 8th-windiest month. For the whole year in context, see Bang Saphan's year-round climate.

Daytime high
28°
11th warmest
Overnight low
23°
1st coldest
Rainfall
44 mm
5.7 wet days
Daylight
11 h 24 min
6:49 AM – 6:14 PM
Cloud cover
46%
2nd clearest
Wind
9 km/h
8th windiest
Solar energy
5.18 kWh/m²
Travel score
6.9
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical January day in Bang Saphan reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, January runs on par with December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12823
22823
32823
42823
52823
62823
72823
82823
92823
102823
112823
122823
132823
142823
152823
162823
172823
182823
192823
202823
212823
222823
232824
242824
252824
262824
272824
282824
292824
302824
312824

How January really feels in Bang Saphan

Once humidity and wind are folded in, January 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

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

Bang Saphan 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
Jan28° / 23°445.711.46.9
Feb29° / 24°235.111.66.4
Mar30° / 25°7310.811.95.2
Apr31° / 26°941612.23.9
May31° / 26°16924.512.53.0
Jun30° / 26°15923.112.63.2
Jul30° / 25°18325.112.63.2
Aug30° / 25°1802512.43.2
Sep29° / 25°20425.712.13.1
Oct29° / 25°23825.511.73.5
Nov29° / 25°10612.411.55.2
Dec28° / 24°425.811.46.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% 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 33%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36436
46535
56535
66535
76535
86535
96535
106634
116634
126634
136634
146733
156634
166634
176733
186733
196733
206733
216733
226832
236832
246832
256931
266931
276931
287030
297030
307129
317129

Chance of precipitation in January

Any precipitation

Bang Saphan gets around 44 mm of rain over 5.7 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 18% and peaks near 20% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
115
216
316
416
516
617
717
817
917
1018
1118
1218
1318
1418
1518
1618
1718
1818
1918
2018
2119
2219
2319
2420
2520
2620
2720
2820
2919
3019
3119

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 63% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11933525
21932535
31832545
41731565
51730566
61630576
71629586
81628596
91627597
101626607
111625617
121625608
131624618
141624618
151624618
161523638
171523638
181522648
191522648
201522657
211421677
221421677
231421677
241420687
251420687
261419697
271419697
281418707
291418707
301418707
311418707

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 9 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
111calm
211calm
311calm
411calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 24 min at the start of January to 11 h 30 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 6:45 AM to 6:50 AM, and sunset from 6:06 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:456:06
211.46:456:06
311.46:456:07
411.46:466:07
511.46:466:08
611.46:466:08
711.46:476:09
811.46:476:09
911.46:476:10
1011.46:486:10
1111.46:486:11
1211.46:486:11
1311.46:486:12
1411.46:496:12
1511.46:496:13
1611.46:496:14
1711.46:496:14
1811.46:496:15
1911.46:496:15
2011.46:506:15
2111.46:506:16
2211.46:506:16
2311.46:506:17
2411.56:506:17
2511.56:506:18
2611.56:506:18
2711.56:506:19
2811.56:506:19
2911.56:506:20
3011.56:506:20
3111.56:506:20

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.18 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 6.12 kWh/m² in April across the year — January's 5.18 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.5Bright
315.5Bright
Planning a trip in January

Hazard calendar for Bang Saphan

In seasonPeak

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

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

Bang Saphan's rainy season runs May–October, when most of the year's rain falls.

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

Is January a good time to visit Bang Saphan?

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

6.9
Sightseeing
1st-best month of the year
7.8
Beach & pool
2nd-best month of the year

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

What to pack for Bang Saphan in January

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

In January, Bang Saphan sees daytime highs around 28°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Bang Saphan 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 16 km away) is warmest in May at about 30°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
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Bang Saphan 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 Bang Saphan peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 18UV 14Nov 23UV 9
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Bang Saphan 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 Bang Saphan is worst in January — around 21 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (September, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateJan 2121 µg/m³Sep 1611 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb20Moderate
Mar19Moderate
Apr19Moderate
May14Moderate
Jun12Moderate
Jul14Moderate
Aug12Good
Sep11Good
Oct11Good
Nov15Moderate
Dec17Moderate
Location & terrain

Where is Bang Saphan?

Bang Saphan sits at 11.2°N, 99.5°E, 12 m above sea level, in Thailand. The nearest listed city is Prachuap Khiri Khan, 74 km away.

Kui BuriSam Roi YotKo TaoPran BuriLang SuanHua Hin

Topography around Bang Saphan

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

Within 3 km, the terrain around Bang Saphan has only modest variations in elevation — a maximum elevation change of 130 m around an average of 12 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 441 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,215 m.

The land around Bang Saphan is covered by trees (62%) within 3 km, trees (51%) and water (43%) within 16 km, and trees (62%) and water (36%) within 80 km.

3 km
130 m
16 km
441 m
80 km
1,215 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Prachuap Khiri Khan 74 km · Chumphon 88 km · Kui Buri 104 km · Sam Roi Yot 124 km · Ko Tao 130 km · Pran Buri 137 km · Lang Suan 149 km · Hua Hin 159 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 Bang Saphan (11.2126°, 99.5117°, elevation 12 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).