Climate averages 1991–2020
Iloilo weather
in May.
A hot, wet month: the 2nd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Iloilo: daytime highs average 31.1°C and nights cool to about 25.7°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 138 mm of rain on roughly 21 days, which makes May a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 37 min on an average May day.
The nearest other city in this atlas is Bago City (35 km away). In May its highs average 30.5°C, 0.6°C cooler than Iloilo, with 208 mm of rain.
Among the 151 cities listed in the Philippines, Iloilo ranks joint 59th of 151 for the warmest May highs and joint 25th of 151 for the driest May (rainfall, lowest first). The mean May high of those 151 cities is 30.7°C; Iloilo is 0.4°C warmer than that mean.
From May to June, average highs fall by 1.4°C to 29.7°C, and monthly rainfall rises from 138 mm to 230 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Iloilo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.0°C24.0°C | 24.0°C | 60 | 12.0 | 11.612 h |
| February | 28.6°C23.9°C | 23.9°C | 57 | 9.3 | 11.812 h |
| March | 29.8°C24.4°C | 24.4°C | 54 | 9.4 | 12.112 h |
| April | 31.3°C25.2°C | 25.2°C | 47 | 8.2 | 12.412 h |
| May, selected | 31.1°C25.7°C | 25.7°C | 138 | 21.1 | 12.613 h |
| June | 29.7°C25.4°C | 25.4°C | 230 | 27.3 | 12.713 h |
| July | 28.8°C25.1°C | 25.1°C | 313 | 29.1 | 12.713 h |
| August | 28.8°C25.1°C | 25.1°C | 282 | 28.7 | 12.512 h |
| September | 28.8°C25.0°C | 25.0°C | 284 | 27.7 | 12.212 h |
| October | 28.8°C24.8°C | 24.8°C | 211 | 25.9 | 11.912 h |
| November | 28.9°C24.8°C | 24.8°C | 121 | 17.8 | 11.612 h |
| December | 28.3°C24.6°C | 24.6°C | 120 | 17.0 | 11.512 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Bago City in MayPhilippines · 35 kmHigh 30.5°C · Low 25.3°C · 208 mm rain
- Bacolod City in MayPhilippines · 42 kmHigh 31.0°C · Low 25.8°C · 227 mm rain
- Mansilingan in MayPhilippines · 46 kmHigh 30.8°C · Low 25.4°C · 227 mm rain
- Binonga in MayPhilippines · 46 kmHigh 30.6°C · Low 25.8°C · 227 mm rain
- Victorias in MayPhilippines · 60 kmHigh 31.2°C · Low 26.0°C · 169 mm rain
- Himamaylan in MayPhilippines · 74 kmHigh 31.6°C · Low 25.0°C · 267 mm rain
- Cadiz, Philippines in MayPhilippines · 84 kmHigh 30.6°C · Low 25.9°C · 149 mm rain
- Kabankalan in MayPhilippines · 84 kmHigh 31.5°C · Low 24.8°C · 267 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Iloilo) is explained once on the Iloilo year overview and on the Sources, method and limits page.