Bay in Winter
In winter (December, January and February), Bay sees average daytime highs around 27°C and overnight lows near 23°C, with 208 mm of rain over about 19 wet days across the season. It is the coldest season of the year and the driest season of the year.
Across winter, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 29% of the time across winter, and the air most often feels oppressive.
Winter is Bay's best season of the year to visit on our travel score. Bay has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Bay's year-round climate.
- Avg daytime high
- 27°C
- coldest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 208 mm
- 19 wet days
- Avg wind
- 13 km/h
- Travel score
- 6.9
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Bay in Winter
Across winter, daytime highs hold fairly steady around 27°C.
A typical winter day in Bay reaches about 27°C and drops to 23°C overnight. The warmest of the three months is December, the coolest January.
How winter really feels in Bay
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
winter sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Bay weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 23° | 40 | 4.6 | 11.3 | 7.2 |
| Feb | 27° / 23° | 27 | 3.8 | 11.5 | 7.3 |
| Mar | 29° / 24° | 33 | 4.6 | 11.9 | 6.6 |
| Apr | 30° / 25° | 37 | 6.1 | 12.3 | 5.3 |
| May | 31° / 25° | 170 | 19.2 | 12.6 | 3.5 |
| Jun | 31° / 25° | 243 | 25.8 | 12.8 | 2.8 |
| Jul | 30° / 25° | 368 | 28.9 | 12.8 | 2.8 |
| Aug | 29° / 25° | 301 | 27.9 | 12.5 | 3.0 |
| Sep | 29° / 25° | 314 | 27.1 | 12.1 | 3.0 |
| Oct | 29° / 25° | 194 | 19.4 | 11.7 | 4.1 |
| Nov | 28° / 25° | 103 | 10.6 | 11.3 | 5.6 |
| Dec | 27° / 24° | 141 | 10.4 | 11.2 | 6.3 |
Cloud cover in Winter
The sky is clear or mostly clear about 29% of the time across winter.
Chance of precipitation in Winter
Bay gets around 208 mm of rain over 19 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 13 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 12 min in early December to 11 h 42 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.3 kWh/m².
Hazard calendar for Bay
In winter, Bay overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Bay sits in the Pacific typhoon belt; the season peaks July–October.
Bay's monsoon runs May–October, when most of the year's rain falls.
Is winter a good time to visit Bay?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Bay for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Bay in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Bay sees daytime highs around 27°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 19 days see rain.
Sea temperature near Bay in Winter
The nearest coast averages about 27°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 49 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 27 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 29 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in Bay in Winter
Clear-sky midday UV across winter averages 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 Bay peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 10 | 11 | 13 | 13 | 12 | 12 | 12 | 14 | 13 | 11 | 9 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Bay in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Bay is worst in September — around 32 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (February, 15 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 17 | 15 | 17 | 17 | 23 | 29 | 28 | 28 | 32 | 27 | 19 | 16 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 15 | Moderate |
| Mar | 17 | Moderate |
| Apr | 17 | Moderate |
| May | 23 | Moderate |
| Jun | 29 | Moderate |
| Jul | 28 | Moderate |
| Aug | 28 | Moderate |
| Sep | 32 | Moderate |
| Oct | 27 | Moderate |
| Nov | 19 | Moderate |
| Dec | 16 | Moderate |
Where is Bay?
Bay sits at 14.2°N, 121.3°E, 11 m above sea level, in Philippines. The nearest listed city is Calauan, 5.0 km away.
Topography around Bay
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bay.
Within 3 km, the terrain around Bay has only modest variations in elevation — a maximum elevation change of 22 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,088 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,141 m.
The land around Bay is covered by cropland (43%) and water (24%) within 3 km, trees (49%) and water (30%) within 16 km, and trees (44%) and water (43%) within 80 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
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 Bay (14.1837°, 121.2855°, elevation 11 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.