Calatagan weather in January

In January, Calatagan sees average daytime highs of 27°C and overnight lows near 25°C, with 22 mm of rain across 3.8 wet days and about 11.3 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 36% of the time in January, and the air most often feels oppressive.

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 Calatagan's 4th-clearest and 2nd-windiest month. For the whole year in context, see Calatagan's year-round climate.

Daytime high
27°
12th warmest
Overnight low
25°
2nd coldest
Rainfall
22 mm
3.8 wet days
Daylight
11 h 18 min
6:29 AM – 5:45 PM
Cloud cover
55%
4th clearest
Wind
24 km/h
2nd windiest
Solar energy
4.84 kWh/m²
Travel score
7.4
out of 10

Calatagan is municipality of the Philippines in the province of Batangas.

Density
144/km²
people per km²
Founded
1912

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical January day in Calatagan reaches about 27°C in the afternoon and slips back to 25°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°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)
12725
22725
32725
42725
52725
62725
72725
82725
92725
102725
112725
122725
132725
142725
152725
162725
172725
182725
192725
202724
212724
222724
232724
242724
252724
262724
272724
282724
292724
302724
312724

How January really feels in Calatagan

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.

Calatagan weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°223.811.37.4
Feb27° / 24°212.711.57.6
Mar28° / 25°242.811.97.3
Apr29° / 26°183.212.36.5
May29° / 27°10914.612.64.8
Jun29° / 27°22022.412.83.8
Jul28° / 26°37526.512.73.6
Aug28° / 26°29225.612.53.9
Sep28° / 26°31425.612.13.8
Oct28° / 26°1812011.74.5
Nov28° / 26°8910.411.45.8
Dec28° / 25°1279.211.26.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 22% of January, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25347
35347
45446
55545
65545
75545
85545
95545
105545
115446
125446
135446
145545
155545
165545
175545
185644
195743
205743
215842
225941
236040
246139
256238
266238
276337
286436
296535
306535
316535

Chance of precipitation in January

Any precipitation

Calatagan gets around 22 mm of rain over 3.8 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 13% and peaks near 18% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
118
217
316
416
515
614
714
814
913
1013
1113
1214
1314
1414
1514
1614
1714
1814
1914
2014
2113
2213
2312
2412
2512
2611
2711
2811
2910
3010
3110

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 66% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1225712
2225712
3225721
4226711
5226711
6227701
7227701
8228691
9228691
10229681
11229681
12230671
13230671
14231661
15231670
16231670
17232660
18232660
19233650
20233650
21234640
22234640
23234640
24334630
25335620
26335620
27336610
28336610
29337600
30337600
31337600

Wind in January

Winds average 24 km/h in January.

Across January, daily wind ranges from about 23 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
124breezy
224breezy
324breezy
424breezy
524breezy
624breezy
724breezy
824breezy
924breezy
1024breezy
1124breezy
1224breezy
1323breezy
1423breezy
1523breezy
1623breezy
1723breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3023breezy
3123breezy

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 6:25 AM to 6:29 AM, and sunset from 5:37 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:255:37
211.26:255:37
311.26:255:38
411.26:265:38
511.26:265:39
611.26:265:39
711.26:275:40
811.26:275:40
911.26:275:41
1011.26:285:41
1111.26:285:42
1211.26:285:43
1311.26:285:43
1411.36:285:44
1511.36:295:44
1611.36:295:45
1711.36:295:45
1811.36:295:46
1911.36:295:46
2011.36:295:47
2111.36:295:47
2211.36:295:48
2311.36:295:48
2411.36:305:49
2511.36:305:49
2611.36:305:50
2711.36:305:50
2811.46:295:51
2911.46:295:51
3011.46:295:52
3111.46:295:52

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.84 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 6.81 kWh/m² in April across the year — January's 4.84 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in January

Hazard calendar for Calatagan

In seasonPeak

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

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

Calatagan's monsoon runs June–October, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Calatagan?

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

7.4
Sightseeing
2nd-best month of the year
7.5
Beach & pool
4th-best month of the year

January is one of the better times to visit Calatagan for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Calatagan in January

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

In January, Calatagan sees daytime highs around 27°C and nights near 25°C. Pack light clothes. Worth having: sun protection and a windbreaker. About 4 days see rain.

light clothessun protectiona windbreaker

Sea temperature near Calatagan in January

The nearest coast averages about 27°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in June at about 30°C and coldest in February near 27°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
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in Calatagan 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 Calatagan peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 18UV 14Nov 22UV 9
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar12Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Calatagan 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 Calatagan is worst in April — around 15 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodApr 1215 µg/m³Jun 1711 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun11Good
Jul12Moderate
Aug13Moderate
Sep12Good
Oct12Good
Nov11Good
Dec12Good
Location & terrain

Where is Calatagan?

Calatagan sits at 13.8°N, 120.6°E, 13 m above sea level, in Philippines. The nearest listed city is Balayan, 16 km away.

Topography around Calatagan

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

Within 3 km, the terrain around Calatagan has only modest variations in elevation — a maximum elevation change of 68 m around an average of 9 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 338 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,539 m.

The land around Calatagan is covered by water (40%) and trees (31%) within 3 km, water (80%) within 16 km, and water (60%) and trees (30%) within 80 km.

3 km
68 m
16 km
338 m
80 km
2,539 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Balayan 16 km · Calaca 23 km · Nasugbu 26 km · Taal 32 km · Bauan 41 km · San Pascual 42 km · General Emilio Aguinaldo 43 km · Tagaytay 44 km

Philippines travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
230 V · 60 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$4,171
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
48%
of population, 2024
Homicide rate
4.3
per 100k, 2023
Road deaths
12
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 569
Religion
Roman Catholic 79%other 8%Muslim 6%other Christian 4%

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 Calatagan (13.8322°, 120.6322°, elevation 13 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).