Calatagan weather in December

In December, Calatagan sees average daytime highs of 28°C and overnight lows near 25°C, with 127 mm of rain across 9.2 wet days and about 11.2 hours of daylight. It is the 10th-warmest and 6th-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 32% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Calatagan's 5th-clearest and 1st-windiest month. For the whole year in context, see Calatagan's year-round climate.

Daytime high
28°
10th warmest
Overnight low
25°
4th coldest
Rainfall
127 mm
9.2 wet days
Daylight
11 h 12 min
6:18 AM – 5:29 PM
Cloud cover
62%
5th clearest
Wind
24 km/h
1st windiest
Solar energy
4.28 kWh/m²
Travel score
6.5
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 December

Average highAverage lowShaded bands: 10–90% of days

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

A typical December day in Calatagan reaches about 28°C in the afternoon and slips back to 25°C overnight — a 2°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, December runs on par with November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102825
112825
122825
132825
142825
152825
162825
172825
182725
192725
202725
212725
222725
232725
242725
252725
262725
272725
282725
292725
302725
312725

How December really feels in Calatagan

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.

Calatagan weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 6th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34852
44852
54852
64852
74852
84852
94852
104852
114852
124852
134951
144852
154753
164753
174753
184753
194753
204753
214753
224753
234753
244654
254753
264753
274852
284852
294951
305050
315149

Chance of precipitation in December

Any precipitation

Calatagan gets around 127 mm of rain over 9.2 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
336
436
536
636
736
835
935
1034
1134
1233
1332
1431
1530
1629
1728
1827
1926
2025
2125
2224
2324
2423
2523
2622
2721
2820
2920
3019
3119

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 79% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1087715
2087814
3087814
4087913
5088012
6088012
7088111
8088111
9088210
10088210
1108839
1208839
1308848
1409838
1509847
16010837
17011836
18012826
19014806
20015805
21016795
22117775
23118774
24119764
25120754
26121753
27122743
28123733
29223723
30224722
31224722

Wind in December

Winds average 24 km/h in December, the windiest month of the year.

Across December, 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
123breezy
223breezy
323breezy
423breezy
523breezy
623breezy
723breezy
823breezy
923breezy
1024breezy
1124breezy
1224breezy
1324breezy
1424breezy
1524breezy
1624breezy
1724breezy
1824breezy
1924breezy
2024breezy
2124breezy
2224breezy
2324breezy
2424breezy
2524breezy
2624breezy
2724breezy
2824breezy
2924breezy
3024breezy
3124breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 12 min at the start of December to 11 h 12 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 6:10 AM to 6:25 AM, and sunset from 5:24 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:105:24
211.26:115:25
311.26:115:25
411.26:125:25
511.26:125:25
611.26:135:26
711.26:135:26
811.26:145:26
911.26:145:27
1011.26:155:27
1111.26:155:27
1211.26:165:28
1311.26:165:28
1411.26:175:28
1511.26:175:29
1611.26:185:29
1711.26:195:30
1811.26:195:30
1911.26:205:31
2011.26:205:31
2111.26:205:31
2211.26:215:32
2311.26:215:32
2411.26:225:33
2511.26:225:33
2611.26:235:34
2711.26:235:34
2811.26:245:35
2911.26:245:35
3011.26:245:36
3111.26:255:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.28 kWh/m² — the year's lowest.

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 — December's 4.28 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.4Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in December

Hazard calendar for Calatagan

In seasonPeak

In December, 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 December a good time to visit Calatagan?

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

6.5
Sightseeing
4th-best month of the year
6.9
Beach & pool
5th-best month of the year

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

What to pack for Calatagan in December

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

In December, Calatagan sees daytime highs around 28°C and nights near 25°C. Pack light clothes. Worth having: rain gear and a windbreaker. About 9 days see rain.

light clothesrain geara windbreaker

Sea temperature near Calatagan in December

The nearest coast averages about 28°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 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 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 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
December 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).