San Narciso weather in December

In December, San Narciso sees average daytime highs of 30°C and overnight lows near 25°C, with 59 mm of rain across 6.5 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 37% 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 06 min by month's end. Set against the rest of the year, December is San Narciso's 5th-clearest and 4th-windiest month. For the whole year in context, see San Narciso's year-round climate.

Daytime high
30°
6th warmest
Overnight low
25°
3rd coldest
Rainfall
59 mm
6.5 wet days
Daylight
11 h 06 min
6:22 AM – 5:29 PM
Cloud cover
57%
5th clearest
Wind
10 km/h
4th windiest
Solar energy
4.38 kWh/m²
Travel score
5.7
out of 10

San Narciso is municipality of the Philippines in the province of Zambales.

Density
449/km²
people per km²

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 30°C through the month.

A typical December day in San Narciso reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
172925
182924
192924
202924
212924
222924
232924
242924
252924
262924
272924
282924
292924
302924
312924

How December really feels in San Narciso

Once humidity and wind are folded in, December averages 25 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
25
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.

San Narciso weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°132.711.26.4
Feb30° / 24°192.911.56.2
Mar31° / 25°295.111.95.5
Apr31° / 26°4410.112.34.5
May31° / 27°21622.412.73.3
Jun30° / 26°4022712.92.9
Jul29° / 26°61729.612.83.0
Aug28° / 26°62529.312.53.1
Sep29° / 26°43427.812.13.1
Oct30° / 26°22720.511.73.8
Nov30° / 25°8810.211.35.0
Dec30° / 25°596.511.15.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35743
45743
55842
65842
75743
85743
95743
105644
115644
125644
135644
145545
155644
165545
175545
185545
195446
205446
215446
225446
235446
245446
255545
265545
275743
285842
295941
305941
316040

Chance of precipitation in December

Any precipitation

San Narciso gets around 59 mm of rain over 6.5 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 20% and peaks near 24% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
124
224
324
424
524
624
724
824
924
1024
1123
1223
1323
1422
1522
1621
1721
1820
1920
2019
2119
2218
2318
2417
2517
2616
2715
2815
2914
3013
3113

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 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10147313
20157213
30157312
40167212
50177112
60177112
70187111
80187111
90187111
100197011
110207010
120207010
13021709
14021709
15122689
16123688
17124678
18125668
19126658
20227647
21228637
22229636
23330616
24331606
25332596
26333595
27333595
28434575
29435574
30436564
31436564

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 12 min at the start of December to 11 h 06 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 6:14 AM to 6:29 AM, and sunset from 5:25 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:145:25
211.26:155:25
311.26:155:25
411.26:165:25
511.26:165:26
611.16:175:26
711.16:185:26
811.16:185:26
911.16:195:27
1011.16:195:27
1111.16:205:27
1211.16:205:28
1311.16:215:28
1411.16:215:28
1511.16:225:29
1611.16:225:29
1711.16:235:30
1811.16:235:30
1911.16:245:31
2011.16:245:31
2111.16:255:31
2211.16:255:32
2311.16:265:32
2411.16:265:33
2511.16:275:33
2611.16:275:34
2711.16:285:34
2811.16:285:35
2911.16:285:35
3011.16:295:36
3111.16:295:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.38 kWh/m².

For context, solar energy here swings from a low near 4.16 kWh/m² to a high of 6.53 kWh/m² in April across the year — December's 4.38 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.6Bright
314.6Bright
Planning a trip in December

Hazard calendar for San Narciso

In seasonPeak

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

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

San Narciso's monsoon runs June–September, 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 San Narciso?

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

5.7
Sightseeing
3rd-best month of the year
7.6
Beach & pool
4th-best month of the year

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

What to pack for San Narciso in December

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

In December, San Narciso sees daytime highs around 30°C and nights near 25°C. Pack light clothes. About 7 days see rain.

light clothes

Sea temperature near San Narciso 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 at the nearest coast (about 16 km away) is warmest in May 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
Mar28Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in San Narciso in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Narciso peaks around August 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 17UV 14Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in San Narciso 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 San Narciso is worst in November — around 30 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateNov 1530 µg/m³Aug 1421 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb26Moderate
Mar29Moderate
Apr28Moderate
May23Moderate
Jun22Moderate
Jul21Moderate
Aug21Moderate
Sep22Moderate
Oct29Moderate
Nov30Moderate
Dec29Moderate
Location & terrain

Where is San Narciso?

San Narciso sits at 15.0°N, 120.1°E, 16 m above sea level, in Philippines. The nearest listed city is San Antonio, 8.0 km away.

Topography around San Narciso

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

Within 3 km, the terrain around San Narciso has only modest variations in elevation — a maximum elevation change of 20 m around an average of 8 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,016 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,021 m.

The land around San Narciso is covered by trees (28%) and cropland (28%) within 3 km, water (40%) and trees (26%) within 16 km, and water (45%) and trees (33%) within 80 km.

3 km
20 m
16 km
1,016 m
80 km
2,021 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: San Antonio 8.0 km · San Marcelino 9.0 km · Castillejos 15 km · Subic 22 km · Olongapo 30 km · Botolan 31 km · Iba 37 km · Morong 42 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 San Narciso (15.0143°, 120.0803°, elevation 16 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).