General Santos weather in December

In December, General Santos sees average daytime highs of 30°C and overnight lows near 22°C, with 208 mm of rain across 22.5 wet days and about 11.7 hours of daylight. It is the 7th-warmest and 7th-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 10% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 42 min at the start of December to 11 h 36 min by month's end. Set against the rest of the year, December is General Santos's 5th-clearest and 6th-windiest month. For the whole year in context, see General Santos's year-round climate.

Daytime high
30°
7th warmest
Overnight low
22°
9th coldest
Rainfall
208 mm
22.5 wet days
Daylight
11 h 36 min
5:46 AM – 5:25 PM
Cloud cover
79%
5th clearest
Wind
5 km/h
6th windiest
Solar energy
4.73 kWh/m²
Travel score
3.6
out of 10

General Santos is City in the Philippines.

Density
1,465/km²
people per km²
Founded
1947

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 General Santos reaches about 30°C in the afternoon and slips back to 22°C overnight — a 7°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)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
262922
272922
282922
292922
302922
312922

How December really feels in General Santos

Once humidity and wind are folded in, December averages 31 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
31
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.

General Santos weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°19819.211.74.0
Feb30° / 22°15014.811.84.1
Mar31° / 22°16317.7123.9
Apr31° / 23°1942012.13.4
May30° / 23°2972712.32.9
Jun29° / 23°32227.512.33.0
Jul29° / 22°24827.212.33.2
Aug29° / 22°22526.212.23.4
Sep29° / 22°19624.5123.3
Oct30° / 22°27025.811.93.1
Nov30° / 22°25625.211.73.2
Dec30° / 22°20822.511.73.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12179
22278
32278
42377
52377
62278
72278
82278
92278
102278
112278
122278
132278
142278
152080
162080
172080
182080
191981
201981
211981
221981
231981
242080
252080
262080
271981
282080
292179
302179
312278

Chance of precipitation in December

Any precipitation

General Santos gets around 208 mm of rain over 22.5 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 73% and peaks near 77% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
177
277
376
476
575
675
775
875
975
1075
1174
1274
1374
1474
1573
1673
1773
1872
1972
2072
2171
2271
2371
2470
2570
2669
2769
2868
2968
3067
3167

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 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10937
20937
30937
40937
50937
60937
70937
80937
90937
100937
110937
121927
131927
141927
151936
161936
171936
181936
191936
202926
212926
222926
233916
243916
254915
265905
275905
286895
297894
307894
318884

Wind in December

Winds average 5 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
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 42 min at the start of December to 11 h 36 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 5:39 AM to 5:53 AM, and sunset from 5:19 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:395:19
211.75:395:19
311.75:405:20
411.75:405:20
511.75:415:20
611.75:415:21
711.75:425:21
811.75:425:22
911.75:435:22
1011.75:435:22
1111.75:445:23
1211.75:445:23
1311.65:455:24
1411.65:455:24
1511.65:465:24
1611.65:465:25
1711.65:475:25
1811.65:475:26
1911.65:485:26
2011.65:485:27
2111.65:485:27
2211.65:495:28
2311.65:495:28
2411.65:505:29
2511.65:505:29
2611.65:515:30
2711.65:515:30
2811.65:525:31
2911.65:525:31
3011.65:535:31
3111.65:535:32

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.73 kWh/m².

For context, solar energy here swings from a low near 4.73 kWh/m² to a high of 5.88 kWh/m² in April across the year — December's 4.73 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in December

Hazard calendar for General Santos

In seasonPeak

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

General Santos 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 General Santos?

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

3.6
Sightseeing
4th-best month of the year
4.8
Beach & pool
5th-best month of the year

December is a weaker month for outdoor sightseeing in General Santos.

What to pack for General Santos in December

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

In December, General Santos sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near General Santos in December

The nearest coast averages about 29°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 27 km away) is warmest in May at about 29°C and coldest in January near 29°C.

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

28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in General Santos in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 General Santos peaks around March 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 18UV 15Dec 13UV 11
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec10Extreme
Location & terrain

Where is General Santos?

General Santos sits at 6.1°N, 125.2°E, 22 m above sea level, in Philippines. The nearest listed city is Alabel, 13 km away.

Topography around General Santos

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

Within 3 km, the terrain around General Santos has only modest variations in elevation — a maximum elevation change of 56 m around an average of 17 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 702 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,255 m.

The land around General Santos is covered by artificial surfaces (43%), trees (27%) and water (26%) within 3 km, trees (46%) and water (25%) within 16 km, and trees (50%) and water (39%) within 80 km.

3 km
56 m
16 km
702 m
80 km
2,255 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Alabel 13 km · Polomolok 17 km · Malapatan 21 km · Maluñgun 22 km · Glan 32 km · Tupi 35 km · Lambayong 47 km · Lake Sebu 52 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 General Santos (6.1128°, 125.1717°, elevation 22 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).