🇵🇭 Climate · air · address · alerts
Weather, air quality and natural hazards in the Philippines
The Philippines’ broad rainy June–November and dry December–May pattern is only an introduction. PAGASA defines four climate types, and exposure changes by island, coast and terrain. Cyclones add wind, rain, flood, landslide and storm-surge risk; earthquakes, volcanoes and tsunamis require separate address checks.
Last verified 1 September 2026
The short answer
What weather and natural hazards should families plan for in the Philippines?
PAGASA says the country is broadly rainy from June to November and dry from December to May, with a cool dry period around December–February and hot dry period around March–May. But the four climate types mean a Manila calendar should not be applied to Cebu or Dumaguete. Use PAGASA for weather and cyclones, HazardHunterPH for address screening, PHIVOLCS for geological hazards and DENR-EMB for air.
Five kinds of weather information
Use the right source for the question you are asking
A climate average, seasonal outlook and live warning answer different questions. The time period becomes shorter from left to right, so the decisions you can make also change.
- 1
Decades
Climate normal
Use it toCompare the broad character of places: typical heat, rainfall and seasonality.
Not toChoosing a moving day or proving a home will not flood.
- 2
Weeks to months
Seasonal outlook
Use it toSee whether a season may lean wetter, drier, hotter or cooler than usual.
Not toA street-level forecast or promise of uninterrupted weather.
- 3
Hours to days
Forecast
Use it toPlan journeys, school days, outdoor activity and household preparation.
Not toA guarantee; uncertainty grows with time and local terrain.
- 4
Now
Nowcast + observation
Use it toRead radar, gauges, air monitors, river levels and conditions already developing.
Not toReplacing instructions issued by an authority.
- 5
Action window
Official warning
Use it toFollow the named hazard, area, severity and protective instructions.
Not toA reason to wait for social-media confirmation.
A useful seasonal overview
Understand the usual seasons, then check the local outlook
These periods describe broad planning patterns, not guaranteed start dates or daily forecasts. Coast, elevation, local climate zone and the individual year can change the result.
Cool dry period—broadly
Often cooler and drier in Type I western areas, but rainfall distribution differs under other climate types.
Use the province’s PAGASA climate data instead of assuming every island is dry.
Hot dry period—broadly
Heat stress rises and thunderstorms remain possible; water and power resilience matter.
Check cooling, school heat rules, shade, water and outage planning.
Broad rainy period
Habagat, tropical cyclones and local storms can drive flood, landslide, surge and transport interruption.
Keep backup options for school, hospital journeys, island travel, power and communications.
Cyclone + geological risk
Cyclones occur most often in the broad wet period but are not restricted to a simple booking window; earthquakes and volcanic events are not seasonal.
Keep the official warning and address plan active all year.
How to compare air quality
Start with the official monitor, not an unexplained AQI number
Indices can use different pollutants, averaging periods, breakpoints and category names. Check what the official local reading measures before comparing it with another source.
Official source
DENR-EMB operates ambient monitoring for PM10, PM2.5 and gaseous pollutants, including national and Metro Manila information.
Local pattern
Traffic, industry, weather, local burning and volcanic emissions can affect air. A station may not represent every street or island.
Research it
Use the nearest representative official station, pollutant and timestamp; review school and building response and whether an indoor clean-air space is practical.
Plan the family response
Follow official health and volcano advice and a clinician-led plan for vulnerable family members; ensure filtration, medicine and power plans work during outages.
Check the exact address
Five details to investigate for every promising home
A map pin is only a starting point. It cannot tell you whether the building leaks, the basement floods, the school journey becomes unusable or the generator powers the lift.
Map the exact pin
Check flood, landslide, storm-surge, tsunami, earthquake or volcano layers that apply. Save the result and its date; a city-wide label is too broad.
Read the building
Ask for prior water ingress, drainage, finished-floor level, slope or retaining-wall history, roof and window repairs, generator coverage and water storage.
Check essential journeys
Map two routes to school, work and hospital. Look for rivers, underpasses, bridges, steep roads, ferries and coastal sections that severe weather could affect at the same time.
Test utilities + air
Confirm backup power, pumps, mobile signal, safe water, ventilation, filtration and a room the family can use during heat, smoke or ash.
Know who will contact you
Ask the school, landlord, insurer and employer who decides on closures, evacuation, sheltering, remote work, repairs and temporary accommodation—and how they will notify you.
Ask what each hazard means for the home
Turn natural hazards into practical property questions
Living in an exposed area does not mean damage is inevitable. Check what applies to the exact address, how the building and essential journeys cope and where current instructions come from.
| Hazard | How it may affect the area | What to check at the address | Live source |
|---|---|---|---|
| Tropical cyclone + severe wind | PAGASA says about 20 tropical cyclones enter the Philippine Area of Responsibility annually and about 8–9 cross the country on average. | HazardHunterPH, roof/windows, shelter, closure trigger, utilities and evacuation. | PAGASA bulletins + local/NDRRMC instructions |
| Flood + storm surge | Cyclone/monsoon rain, rivers, drainage and coastal surge can combine. | Flood/surge layer, elevation, prior water, road/bridge history and two routes. | PAGASA flood/surge warnings + local authorities |
| Rain-induced landslide | Mountain, cut-slope and single-road locations can fail during prolonged/intense rain. | HazardHunterPH, slope/drainage history, cracks and alternate access. | PAGASA + MGB/local evacuation notice |
| Earthquake + tsunami | Active faults, shaking, liquefaction and coastal tsunami exposure vary by exact address. | HazardHunterPH/PHIVOLCS layers, building evidence and signed evacuation route. | PHIVOLCS bulletins and local instructions |
| Volcano, heat + air | Volcano hazards are zone-specific; ash, heat and urban pollution can affect health and services farther away. | PHIVOLCS zone, DENR-EMB monitor, clean-air/cooling room, power and school plan. | PHIVOLCS + PAGASA + DENR-EMB |
Conditions vary within each city
Compare the main weather issue in each likely family base
Use these summaries to guide further research. They are not neighbourhood ratings, and individual properties can face very different conditions.
Metro Manila
- Usual pattern
- A pronounced western wet/dry rhythm influenced by Habagat and tropical cyclones.
- Look out for
- Urban/river flood, heat, air pollution, severe wind, quake and liquefaction in susceptible areas.
- Check locally
- HazardHunterPH pin, floor/road level, pumps/basement, DENR station and two routes.
Cebu
- Usual pattern
- Rainfall is less neatly divided than Manila and local exposure varies across the island/coasts.
- Look out for
- Severe wind, flood, landslide, quake, tsunami/storm surge and bridge/port/power interruption.
- Check locally
- Exact multi-hazard result, building envelope, slope/coast route and utility fallback.
Dumaguete
- Usual pattern
- Rain can be more distributed through the year; lower direct cyclone frequency than northern areas is not zero risk.
- Look out for
- Earthquake, tsunami/liquefaction, flood, landslide, heat and island transfer interruption.
- Check locally
- HazardHunterPH/PHIVOLCS pin, evacuation route, coast/valley context and alternate transport.
Set up weather alerts before you need them
Save official sources before severe weather arrives
Use national services for official observations and warnings, then local channels for instructions about the building, school, roads and evacuation.
Weather + cyclone
PAGASA forecasts, rainfall, flood, storm-surge and tropical-cyclone bulletins.
LimitThe Philippine Area of Responsibility is a warning domain, not proof every cyclone will affect your address.
Address screening
HazardHunterPH layers from government agencies for geological and hydro-meteorological hazards.
LimitScenario, scale and data date matter; validate with current field/building evidence.
Geological
PHIVOLCS maps and bulletins for earthquakes, volcanoes and tsunami.
LimitDo not rely on unofficial alert screenshots or cross a declared danger zone.
Air
DENR-EMB ambient monitoring and official advice.
LimitCoverage varies; read the pollutant and station context.
Five assumptions to avoid
Do not let a short viewing hide weather-related problems
Each assumption can seem reasonable during a viewing or scouting trip but prove wrong when the conditions change.
One typhoon season for every island
Frequency and impact differ, and rain, surge or transport disruption can extend far from landfall.
PAR entry equals local impact
Use PAGASA’s track, wind and rainfall products for the named place.
A high-rise avoids all hazards
Shaking, wind, lifts, water, power, parking and access remain building-level questions.
Lower cyclone frequency means no plan
Cebu and Dumaguete still require wind, flood, geological and route planning.
A map report filed away
Walk evacuation routes and update contacts when home, school or office changes.
Connect the family plan
Use weather research throughout the rest of the move
Apply what you learn to housing, transport, healthcare, insurance and emergency planning.
Common questions
Questions about weather and natural hazards in the Philippines
Does monsoon mean it rains all day?
No. A monsoon is a seasonal wind regime, not a promise of continuous rain. It can bring short intense storms, longer wet spells, rough seas and flooding, while individual days may still be dry. Timing and impact differ by coast, elevation and year, so use the official local outlook and forecast rather than a country-wide label.
Can I compare air-quality index numbers between countries?
Not safely from the number alone. National indices can use different pollutants, averaging periods, breakpoints and categories. Read the official index definition, pollutant and station time, then follow health advice from the local authority and a clinician for asthma, pregnancy or other vulnerabilities.
How can I check whether a rental is likely to flood?
Start with the official hazard map, then ask for building-specific evidence: previous ingress and repairs, floor level, drains, pumps, basement parking, access roads, utility shut-offs and insurance. Revisit in heavy rain if possible. A map is a screening layer, not a property survey or guarantee.
Should we buy an air purifier before moving?
First identify the room size, likely pollutant, official monitoring source and family health needs. If filtration is appropriate, compare clean-air delivery for the room, filter availability and cost, noise, seals and backup power. A purifier does not make all outdoor exposure safe; discuss medical action plans with a clinician.
Are historic monthly averages enough to choose a moving date?
No. Averages help compare broad patterns but hide extremes and do not predict a particular week. Recheck the seasonal outlook, short-range forecast, current observations and official warnings close to travel, and keep flexible transport and accommodation arrangements.
What should a family do when an official warning is issued?
Use the issuing agency’s wording for the named place and hazard, then follow local authority, school, building and emergency-service instructions. Keep phones charged, preserve offline contacts and documents, and avoid self-directed travel through floodwater, ash, severe wind or closed routes.
When is the rainy season in the Philippines?
PAGASA gives a broad national rainy period from June to November and dry period from December to May, but it also defines four climate types. Some places have a pronounced dry season; others have rainfall distributed differently. Use the province’s climate data and current PAGASA outlook.
How many typhoons affect the Philippines?
PAGASA says about 20 tropical cyclones enter the Philippine Area of Responsibility each year and about 8 or 9 cross the country on average. That does not mean every place receives the same exposure. Track the current cyclone’s wind, rainfall and surge products for the exact location.