Calapan weather in December

In December, Calapan sees average daytime highs of 28°C and overnight lows near 24°C, with 439 mm of rain across 28.2 wet days and about 11.2 hours of daylight. It is the 11th-warmest and 1st-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 13% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 18 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Calapan's 7th-clearest and 1st-windiest month. For the whole year in context, see Calapan's year-round climate.

Daytime high
28°
11th warmest
Overnight low
24°
4th coldest
Rainfall
439 mm
28.2 wet days
Daylight
11 h 12 min
6:15 AM – 5:28 PM
Cloud cover
72%
7th clearest
Wind
11 km/h
1st windiest
Solar energy
4.1 kWh/m²
Travel score
3.6
out of 10

Calapan is city of the Philippines and capital of the province of Oriental Mindoro.

Density
264/km²
people per km²
Founded
1917

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 Calapan reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824
312824

How December really feels in Calapan

Once humidity and wind are folded in, December averages 6 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
6
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Calapan weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°22225.211.34.2
Feb28° / 23°16418.811.64.6
Mar29° / 24°13818.411.94.5
Apr31° / 25°8415.312.34.2
May31° / 26°17323.112.63.0
Jun31° / 26°22525.212.82.7
Jul30° / 25°31227.112.72.8
Aug31° / 25°2382512.42.9
Sep30° / 25°32026.212.12.8
Oct30° / 25°26426.611.73.1
Nov29° / 25°28126.811.43.3
Dec28° / 24°43928.211.23.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33367
43367
53367
63466
73466
83466
93466
103466
113466
123466
133466
143466
153466
163466
173367
183367
193367
203367
213466
223367
233367
243466
253466
263466
273466
283466
293565
303565
313664

Chance of precipitation in December

Any precipitation

Calapan gets around 439 mm of rain over 28.2 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 90% and peaks near 93% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
192
292
392
493
593
693
793
893
993
1093
1193
1292
1392
1492
1591
1691
1791
1890
1990
2090
2189
2289
2389
2488
2588
2687
2787
2886
2986
3086
3185

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 66% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
125543
235641
325840
425840
525939
626038
726038
826137
926236
1026236
1136235
1236433
1336532
1436631
1546630
1646729
1756728
1856827
1966925
2076924
2186923
2287022
2397021
24107020
25117019
26117118
27127117
28137116
29137215
30137314
31147313

Wind in December

Winds average 11 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 18 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 shrink by about 6 minutes over December. Sunrise moves from 6:07 AM to 6:22 AM, and sunset from 5:23 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:075:23
211.36:085:23
311.36:085:23
411.36:095:24
511.26:095:24
611.26:105:24
711.26:105:25
811.26:115:25
911.26:115:25
1011.26:125:26
1111.26:125:26
1211.26:135:26
1311.26:135:27
1411.26:145:27
1511.26:155:27
1611.26:155:28
1711.26:165:28
1811.26:165:29
1911.26:175:29
2011.26:175:30
2111.26:185:30
2211.26:185:31
2311.26:185:31
2411.26:195:31
2511.26:195:32
2611.26:205:32
2711.26:205:33
2811.26:215:33
2911.26:215:34
3011.26:215:34
3111.26:225:35

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.1 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.1 kWh/m² to a high of 6.57 kWh/m² in April across the year — December's 4.1 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.1Bright
74.1Bright
84.1Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.1Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in December

Hazard calendar for Calapan

In seasonPeak

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

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

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

Is December a good time to visit Calapan?

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

3.6
Sightseeing
5th-best month of the year
4.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Calapan.

What to pack for Calapan in December

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

In December, Calapan sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

Sea temperature near Calapan in December

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

The sea at the nearest coast (about 21 km away) is warmest in June at about 30°C and coldest in January near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar27Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Calapan 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 Calapan peaks around August 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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 17UV 14Dec 11UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar12Extreme
Apr13Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high
Location & terrain

Where is Calapan?

Calapan sits at 13.4°N, 121.2°E, 8 m above sea level, in Philippines. The nearest listed city is Rosario, 25 km away.

Topography around Calapan

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

Within 3 km, the terrain around Calapan has only modest variations in elevation — a maximum elevation change of 190 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 190 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,538 m.

The land around Calapan is covered by trees (38%) and water (35%) within 3 km, water (58%) and cropland (20%) within 16 km, and water (47%) and trees (40%) within 80 km.

3 km
190 m
16 km
190 m
80 km
2,538 m
treesgrasslandcroplandartificial surfaceswatermangroves
December weather nearby: Rosario 25 km · Puerto Galera 27 km · Victoria 28 km · Batangas 41 km · Bauan 46 km · San Pascual 48 km · Pinamalayan 51 km · Cuenca 56 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 Calapan (13.4117°, 121.1803°, elevation 8 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).