Ilagan weather in December

In December, Ilagan sees average daytime highs of 25°C and overnight lows near 20°C, with 313 mm of rain across 24.8 wet days and about 11 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 6% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 hours at the start of December to 11 hours by month's end. Set against the rest of the year, December is Ilagan's 9th-clearest and 2nd-windiest month. For the whole year in context, see Ilagan's year-round climate.

Daytime high
25°
11th warmest
Overnight low
20°
3rd coldest
Rainfall
313 mm
24.8 wet days
Daylight
11 hours
6:19 AM – 5:18 PM
Cloud cover
80%
9th clearest
Wind
6 km/h
2nd windiest
Solar energy
2.54 kWh/m²
Travel score
4.4
out of 10

Ilagan is city of the Philippines and capital of the province of Isabela.

Density
141/km²
people per km²
Founded
1686

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 25°C through the month.

A typical December day in Ilagan reaches about 25°C in the afternoon and slips back to 20°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 28°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12621
22621
32621
42621
52621
62621
72520
82520
92520
102520
112520
122520
132520
142520
152520
162520
172520
182520
192520
202520
212520
222520
232520
242520
252520
262519
272519
282519
292519
302519
312519

How December really feels in Ilagan

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.

Ilagan weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 19°11920.411.15.1
Feb26° / 19°10618.411.45.1
Mar28° / 20°10217.911.95.2
Apr30° / 22°11617.112.44.1
May31° / 23°23324.112.82.9
Jun32° / 23°23025.9132.5
Jul31° / 23°36428.712.92.6
Aug30° / 23°32928.312.62.6
Sep30° / 23°30126.912.12.9
Oct28° / 22°26725.611.63.7
Nov27° / 21°2632411.24.2
Dec25° / 20°31324.8114.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22476
32377
42377
52278
62278
72278
82278
92278
102179
112179
122179
132080
142080
152080
162080
171981
181981
191981
201981
211882
221783
231783
241783
251684
261684
271684
281684
291882
301882
311981

Chance of precipitation in December

Any precipitation

Ilagan gets around 313 mm of rain over 24.8 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 79% and peaks near 81% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
179
279
380
480
580
680
781
881
981
1081
1181
1281
1381
1481
1580
1680
1780
1879
1979
2079
2179
2278
2378
2478
2577
2677
2776
2875
2974
3073
3172

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 90% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1053857
2054055
3054154
4054253
5054352
6054451
7054550
8054649
9054748
10054847
11054946
12055045
13065044
14065242
15075241
16075340
17085438
18095437
190105535
200115534
210125632
220135730
230145729
240155827
250165826
260166024
271175923
281185922
291186021
301186120
311186219

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 hours at the start of December to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:11 AM to 6:26 AM, and sunset from 5:14 PM to 5:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:115:14
211.06:115:14
311.06:125:14
411.06:125:14
511.06:135:14
611.06:145:15
711.06:145:15
811.06:155:15
911.06:155:16
1011.06:165:16
1111.06:165:16
1211.06:175:17
1311.06:185:17
1411.06:185:17
1511.06:195:18
1611.06:195:18
1711.06:205:18
1811.06:205:19
1911.06:215:19
2011.06:215:20
2111.06:225:20
2211.06:225:21
2311.06:235:21
2411.06:235:22
2511.06:245:22
2611.06:245:23
2711.06:245:23
2811.06:255:24
2911.06:255:24
3011.06:265:25
3111.06:265:25

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.54 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.54 kWh/m² to a high of 5.99 kWh/m² in June across the year — December's 2.54 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.8Moderate
22.8Moderate
32.8Moderate
42.7Moderate
52.7Moderate
62.7Moderate
72.6Moderate
82.6Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.6Moderate
252.6Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.7Moderate
312.7Moderate
Planning a trip in December

Hazard calendar for Ilagan

In seasonPeak

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

Ilagan 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 Ilagan?

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

4.4
Sightseeing
4th-best month of the year
4.1
Beach & pool
8th-best month of the year

December is a reasonable time to visit Ilagan for sightseeing.

What to pack for Ilagan in December

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

In December, Ilagan sees daytime highs around 25°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 25 days see rain.

rain gearlight clothes

Sea temperature near Ilagan 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 57 km away) is warmest in June at about 30°C and coldest in February 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
Apr28Tropical
May29Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov28Warm
Dec27Warm

UV index in Ilagan in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ilagan peaks around August 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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 19UV 14Dec 11UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr13Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct10Extreme
Nov8Very high
Dec8Very high
Location & terrain

Where is Ilagan?

Ilagan sits at 17.1°N, 121.9°E, 55 m above sea level, in Philippines. The nearest listed city is Roxas, 29 km away.

Topography around Ilagan

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

Within 3 km, the terrain around Ilagan has only modest variations in elevation — a maximum elevation change of 85 m around an average of 36 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 722 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,277 m.

The land around Ilagan is covered by cropland (63%) within 3 km, cropland (57%) and trees (32%) within 16 km, and trees (55%) and cropland (23%) within 80 km.

3 km
85 m
16 km
722 m
80 km
2,277 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Roxas 29 km · Cabagan 34 km · San Mateo 44 km · Alicia 46 km · Tuguegarao 55 km · Ramon 55 km · Tabuk 58 km · Solana 60 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 Ilagan (17.1485°, 121.8892°, elevation 55 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).