Isulan in Winter
In winter (December, January and February), Isulan sees average daytime highs around 31°C and overnight lows near 23°C, with 358 mm of rain over about 51 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 31°C. The sky is clear or mostly clear about 13% of the time across winter, and the air most often feels oppressive.
Winter is Isulan's best season of the year to visit on our travel score. For the whole year in context, see Isulan's year-round climate.
- Avg daytime high
- 31°C
- coldest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 358 mm
- 51 wet days
- Avg wind
- 4 km/h
- Travel score
- 3.6
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Isulan in Winter
Across winter, daytime highs hold fairly steady around 31°C.
A typical winter day in Isulan reaches about 31°C and drops to 23°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Isulan
Once humidity and wind are folded in, winter brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Isulan 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 | 31° / 23° | 129 | 17 | 11.7 | 3.8 |
| Feb | 31° / 23° | 99 | 14.1 | 11.8 | 3.7 |
| Mar | 33° / 23° | 112 | 15.8 | 12 | 3.2 |
| Apr | 33° / 24° | 123 | 18.2 | 12.1 | 2.6 |
| May | 33° / 24° | 225 | 27.1 | 12.3 | 2.2 |
| Jun | 31° / 24° | 258 | 27 | 12.4 | 2.4 |
| Jul | 31° / 23° | 256 | 26.6 | 12.3 | 2.7 |
| Aug | 31° / 23° | 214 | 25.1 | 12.2 | 2.8 |
| Sep | 31° / 23° | 211 | 25 | 12 | 2.7 |
| Oct | 31° / 23° | 238 | 26.4 | 11.9 | 2.6 |
| Nov | 31° / 23° | 171 | 23.2 | 11.7 | 2.9 |
| Dec | 31° / 23° | 130 | 20 | 11.6 | 3.3 |
Cloud cover in Winter
The sky is clear or mostly clear about 13% of the time across winter.
Chance of precipitation in Winter
Isulan gets around 358 mm of rain over 51 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 4 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 36 min in early December to 11 h 54 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 4.9 kWh/m².
Hazard calendar for Isulan
In winter, Isulan overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Isulan sits in the Pacific typhoon belt; the season peaks July–October.
Is winter a good time to visit Isulan?
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 weaker month for outdoor sightseeing in Isulan.
What to pack for Isulan in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Isulan sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 51 days see rain.
Sea temperature near Isulan in Winter
The nearest coast averages about 29°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 60 km away) is warmest in May at about 30°C and coldest in February near 29°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) | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 30 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Isulan in Winter
Clear-sky midday UV across winter averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Isulan peaks around March 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 10 (extreme).
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) | 12 | 13 | 15 | 14 | 12 | 12 | 12 | 13 | 13 | 13 | 11 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 13 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 13 | Extreme |
| Nov | 11 | Extreme |
| Dec | 10 | Very high |
Air quality in Isulan 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 Isulan is worst in March — around 23 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 20 | 21 | 23 | 18 | 17 | 16 | 16 | 16 | 19 | 19 | 18 | 19 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 20 | Moderate |
| Feb | 21 | Moderate |
| Mar | 23 | Moderate |
| Apr | 18 | Moderate |
| May | 17 | Moderate |
| Jun | 16 | Moderate |
| Jul | 16 | Moderate |
| Aug | 16 | Moderate |
| Sep | 19 | Moderate |
| Oct | 19 | Moderate |
| Nov | 18 | Moderate |
| Dec | 19 | Moderate |
Where is Isulan?
Isulan sits at 6.6°N, 124.6°E, 65 m above sea level, in Philippines. The nearest listed city is Laguilayan, 10 km away.
Topography around Isulan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Isulan.
Within 3 km, the terrain around Isulan has only modest variations in elevation — a maximum elevation change of 25 m around an average of 67 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,834 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,592 m.
The land around Isulan is covered by cropland (42%) and trees (40%) within 3 km, trees (50%) and cropland (42%) within 16 km, and trees (63%) 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 Isulan (6.6294°, 124.605°, elevation 65 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.