Bais weather in December

In December, Bais sees average daytime highs of 29°C and overnight lows near 24°C, with 126 mm of rain across 17.2 wet days and about 11.5 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 14% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 30 min at the start of December to 11 h 24 min by month's end. Set against the rest of the year, December is Bais's 5th-clearest and 4th-windiest month. For the whole year in context, see Bais's year-round climate.

Daytime high
29°
8th warmest
Overnight low
24°
4th coldest
Rainfall
126 mm
17.2 wet days
Daylight
11 h 24 min
6:00 AM – 5:27 PM
Cloud cover
74%
5th clearest
Wind
11 km/h
4th windiest
Solar energy
4.41 kWh/m²
Travel score
4.4
out of 10

Bais is city of the Philippines in the province of Negros Oriental.

Density
275/km²
people per km²
Founded
1968

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 29°C through the month.

A typical December day in Bais reaches about 29°C in the afternoon and slips back to 24°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 30°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)
12924
22924
32924
42924
52924
62924
72924
82924
92924
102924
112924
122924
132924
142924
152924
162924
172924
182924
192924
202924
212924
222924
232924
242924
252924
262924
272924
282924
292924
302924
312924

How December really feels in Bais

Once humidity and wind are folded in, December averages 30 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
30
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.

Bais weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°721211.55.1
Feb29° / 23°729.211.75.2
Mar30° / 24°659.411.94.8
Apr32° / 25°589.212.24.2
May31° / 25°15221.912.43.2
Jun30° / 25°24326.712.52.9
Jul29° / 24°2872812.53.1
Aug29° / 24°25926.112.33.3
Sep29° / 24°2682712.13.1
Oct29° / 24°24326.811.83.2
Nov30° / 24°13519.411.63.9
Dec29° / 24°12617.211.54.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% 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 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
43070
53070
63169
73169
83169
93070
103169
113169
123169
133169
143169
153169
163169
173169
182872
192872
202872
212872
222872
232872
242773
252773
262773
272971
282971
292971
303070
313070

Chance of precipitation in December

Any precipitation

Bais gets around 126 mm of rain over 17.2 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 55% and peaks near 60% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
158
258
358
458
559
659
760
860
960
1060
1160
1259
1358
1458
1557
1656
1755
1855
1954
2053
2152
2251
2351
2450
2549
2648
2748
2847
2947
3046
3146

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 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
117425
217425
317425
417524
517524
617524
717623
817722
917722
1017821
1117920
1218019
1318118
1418118
1518217
1628216
1728315
1828315
1938314
2038314
2148313
2258213
2358312
2468212
2568311
2678211
2778310
2888210
298839
308839
318848

Wind in December

Winds average 11 km/h in December.

Across December, daily wind ranges from about 10 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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012light breeze
3112light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 30 min at the start of December to 11 h 24 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 5:53 AM to 6:07 AM, and sunset from 5:22 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.55:535:22
211.55:535:22
311.55:545:22
411.55:545:23
511.55:555:23
611.55:555:23
711.55:565:23
811.55:565:24
911.55:575:24
1011.55:575:25
1111.55:585:25
1211.45:585:25
1311.45:595:26
1411.45:595:26
1511.46:005:27
1611.46:005:27
1711.46:015:27
1811.46:015:28
1911.46:025:28
2011.46:025:29
2111.46:035:29
2211.46:035:30
2311.46:045:30
2411.46:045:31
2511.46:055:31
2611.46:055:32
2711.46:065:32
2811.46:065:33
2911.46:065:33
3011.46:075:34
3111.46:075:34

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.41 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.41 kWh/m² to a high of 6.29 kWh/m² in April across the year — December's 4.41 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
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
244.4Bright
254.4Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in December

Hazard calendar for Bais

In seasonPeak

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

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

Bais's rainy season runs May–November, when most of the year's rain falls.

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

Is December a good time to visit Bais?

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
5.7
Beach & pool
5th-best month of the year

December is a reasonable time to visit Bais for sightseeing.

What to pack for Bais in December

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

In December, Bais sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. About 17 days see rain.

light clothesrain gear

Sea temperature near Bais 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 28 km away) 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°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Warm
Apr28Tropical
May29Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Bais 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 Bais peaks around March 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 22UV 15Dec 12UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec10Very high
Location & terrain

Where is Bais?

Bais sits at 9.6°N, 123.1°E, 10 m above sea level, in Philippines. The nearest listed city is Tanjay, 9.0 km away.

Topography around Bais

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

Within 3 km, the terrain around Bais has only modest variations in elevation — a maximum elevation change of 150 m around an average of 10 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 930 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,814 m.

The land around Bais is covered by water (36%) and cropland (34%) within 3 km, trees (46%) and water (39%) within 16 km, and water (50%) and trees (42%) within 80 km.

3 km
150 m
16 km
930 m
80 km
1,814 m
treesgrasslandcroplandartificial surfaceswatermangroves
December weather nearby: Tanjay 9.0 km · Sibulan 31 km · Dumaguete 38 km · Santa Catalina 40 km · Bayawan 43 km · Kabankalan 55 km · Suay 60 km · Guihulñgan 61 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 Bais (9.5911°, 123.1228°, elevation 10 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).