Calsib, Philippines experiences average highs of 32°C (90°F) and lows of 24°C (75°F) throughout the year. Rainfall is frequent, averaging about 18 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have stayed broadly stable across the available records.
Calsib, Philippines Weather & Climate 2026
Monthly climate averages for Calsib, Philippines. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
3.2/10
Best: January, February, December
UV Index
8
High
Temperature 32°C / 24°C
Feels Like 37°C / 29°C
Rainy Days 18
Rainfall 216 mm
Sunshine 9 h
Humidity 79%
Wind Speed 10 km/h
Dew Point 24°C
Hottest Month
35°C
April
Avg Low25°C
Rain14days
Coldest Month
22°C
January
Avg High31°C
Rain6days
Driest Month
5days
February
Avg High32°C
Avg Low22°C
Windiest Month
12 km/h
February (Gusts 35)
Sea Temperature
28°C – 32°C
Warmest water: May (
31.5°C
)
Worst Time to Visit
Consider avoiding May, June, July, August due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 05:29
Daylight 13.1h
Sunset 18:33
Live conditions—
Calsib on the map · live conditions
Calsib, Philippines
- Continent
- Asia
- Country
- Philippines
- City
- Calsib
- Population
- 2.2K
- Coordinates
- 15.85°, 120.26°
Seasonal Breakdown
Spring
Mar–May
Avg High 34°C
Avg Low 25°C
Rain 16 days/mo
Summer
Jun–Aug
Avg High 31°C
Avg Low 25°C
Rain 30 days/mo
Autumn
Sep–Nov
Avg High 31°C
Avg Low 24°C
Rain 20 days/mo
Winter
Dec–Feb
Avg High 31°C
Avg Low 22°C
Rain 7 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 31°C / 22°C . Feb: 32°C / 22°C . Mar: 34°C / 24°C . Apr: 35°C / 25°C . May: 34°C / 26°C . Jun: 32°C / 25°C . Jul: 31°C / 25°C . Aug: 30°C / 25°C . Sep: 30°C / 25°C . Oct: 31°C / 24°C . Nov: 31°C / 24°C . Dec: 31°C / 23°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 38 mm. Feb: 29 mm. Mar: 41 mm. Apr: 73 mm. May: 249 mm. Jun: 353 mm. Jul: 505 mm. Aug: 490 mm. Sep: 381 mm. Oct: 273 mm. Nov: 104 mm. Dec: 57 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 74%. Feb: 70%. Mar: 68%. Apr: 69%. May: 76%. Jun: 85%. Jul: 87%. Aug: 88%. Sep: 88%. Oct: 85%. Nov: 81%. Dec: 77%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 12 km/h . Feb: 12 km/h . Mar: 12 km/h . Apr: 11 km/h . May: 10 km/h . Jun: 9 km/h . Jul: 10 km/h . Aug: 9 km/h . Sep: 10 km/h . Oct: 10 km/h . Nov: 10 km/h . Dec: 10 km/h .
Sunshine
Sunshine
Sunshine: Jan: 10h. Feb: 10h. Mar: 11h. Apr: 12h. May: 11h. Jun: 10h. Jul: 8h. Aug: 8h. Sep: 8h. Oct: 9h. Nov: 10h. Dec: 9h.
Sea Temperature
Sea Temperature
Line chart showing monthly sea temperature. Jan: 28°C . Feb: 28°C . Mar: 29°C . Apr: 31°C . May: 32°C . Jun: 31°C . Jul: 31°C . Aug: 31°C . Sep: 30°C . Oct: 30°C . Nov: 30°C . Dec: 29°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 7. Feb: UV 8. Mar: UV 9. Apr: UV 9. May: UV 8. Jun: UV 8. Jul: UV 7. Aug: UV 8. Sep: UV 7. Oct: UV 7. Nov: UV 7. Dec: UV 7.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending wetter by about 53 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Apr 2025 · 36°C | Apr · 35°C |
| Coldest month | Jan 2025 · 23°C | Jan · 22°C |
| Wettest month | Jul 2025 · 682 mm | Jul · 505 mm |
| Windiest month | Feb 2025 · 13 km/h | Feb · 12 km/h |
Month-by-Month Weather Table
January best
Good 
February best
Fair March
Poor April
Poor May
Wet June
Wet July
Wet August
Wet September
Wet October
Wet November
Poor December best
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 31°C / 22°C | 34°C / 25°C | 6days (38 mm) Good | 9.7h Good | 74% Muggy | 6.8 High | Good | View Details |
| February best | 32°C / 22°C | 35°C / 25°C | 5days (29 mm) Good | 10.2h Excellent | 70% Muggy | 7.7 Very High | Fair | View Details |
| March | 34°C / 24°C | 38°C / 27°C | 8days (41 mm) Wet | 11h Excellent | 68% Muggy | 8.7 Very High | Poor | View Details |
| April | 35°C / 25°C | 40°C / 30°C | 14days (73 mm) Wet | 11.5h Excellent | 69% Muggy | 9.1 Very High | Poor | View Details |
| May | 34°C / 26°C | 41°C / 31°C | 25days (249 mm) Wet | 10.6h Excellent | 76% Humid | 8.4 Very High | Wet | View Details |
| June | 32°C / 25°C | 39°C / 31°C | 29days (353 mm) Wet | 9.5h Good | 85% Humid | 8 Very High | Wet | View Details |
| July | 31°C / 25°C | 38°C / 31°C | 30days (505 mm) Wet | 7.8h Good | 87% Very Muggy | 7.1 Very High | Wet | View Details |
| August | 30°C / 25°C | 37°C / 30°C | 30days (490 mm) Wet | 7.7h Good | 88% Very Muggy | 8.2 Very High | Wet | View Details |
| September | 30°C / 25°C | 37°C / 30°C | 28days (381 mm) Wet | 7.9h Good | 88% Very Muggy | 6.8 High | Wet | View Details |
| October | 31°C / 24°C | 37°C / 29°C | 22days (273 mm) Wet | 8.7h Good | 85% Humid | 7.4 Very High | Wet | View Details |
| November | 31°C / 24°C | 37°C / 28°C | 11days (104 mm) Wet | 9.6h Good | 81% Humid | 6.6 High | Poor | View Details |
| December best | 31°C / 23°C | 35°C / 27°C | 10days (57 mm) Wet | 9.1h Good | 77% Humid | 6.5 High | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Calsib are January, February, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Calsib, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Calsib is April, with average daytime highs of 35°C (95°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Calsib is January, with average overnight lows of 22°C (72°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Calsib is July, averaging 505mm of precipitation across 30 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Calsib runs through July, August, June, September, with the heaviest rainfall in July. Based on 10-year averages for Calsib.
Calsib receives approximately 113 sunshine hours per year. The sunniest month is April with around 12 hours. Based on climate data for Calsib.
The least favorable months to visit Calsib are May, June, July, August, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider January, February, December instead.
The annual average UV index in Calsib is 8, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Calsib is 79%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in January, February, March, April, May, June, July, August, September, October, November, December average 30°C (86°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Calsib are 10 km/h (6 mph). The windiest month is February with peak winds reaching 12 km/h (7 mph) (gusts up to 35 km/h / 22 mph).
Calsib averages 2 clear-sky days per month with overall cloud cover around 67%. The clearest skies occur in February.
The annual average dew point in Calsib is 24°C (75°F), which feels oppressively humid. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Calsib has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Calsib ranges from 29°C (84°F) to 37°C (99°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Calsib, with a climate score of 1/10. Consider visiting during January, February, December instead for better conditions.
For June in Calsib, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 32°C (89°F) and 29 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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