Iloilo weather in May

In May, Iloilo sees average daytime highs of 32°C and overnight lows near 25°C, with 138 mm of rain across 21.1 wet days and about 12.5 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 16% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 36 min by month's end. Set against the rest of the year, May is Iloilo's 7th-clearest and 11th-windiest month. For the whole year in context, see Iloilo's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
25°
12th coldest
Rainfall
138 mm
21.1 wet days
Daylight
12 h 30 min
5:31 AM – 6:01 PM
Cloud cover
73%
7th clearest
Wind
9 km/h
11th windiest
Solar energy
5.36 kWh/m²
Travel score
2.9
out of 10

Iloilo is city of the Philippines and capital of the province of Iloilo.

Density
6,047/km²
people per km²
Founded
1566

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical May day in Iloilo reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13325
23325
33325
43325
53325
63325
73225
83225
93225
103225
113225
123225
133225
143225
153225
163225
173225
183225
193225
203225
213225
223225
233225
243225
253225
263225
273225
283225
293225
303225
313225

How May really feels in Iloilo

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Iloilo weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°601211.45.2
Feb30° / 24°569.211.65.2
Mar31° / 24°549.411.94.7
Apr32° / 25°478.212.24.1
May32° / 25°13821.112.52.9
Jun31° / 25°23027.312.62.6
Jul30° / 25°31329.112.62.7
Aug30° / 25°28228.712.42.8
Sep30° / 25°28427.812.12.8
Oct30° / 25°21125.911.83.1
Nov30° / 25°12117.811.54.0
Dec29° / 24°1201711.44.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 69%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34654
44555
54357
64258
74159
83961
93763
103763
113664
123466
133268
143169
153070
162971
172773
182674
192575
202575
212476
222476
232278
242179
252179
262080
272080
281981
291981
301981
311981

Chance of precipitation in May

Any precipitation

Iloilo gets around 138 mm of rain over 21.1 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 67% and peaks near 83% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
142
244
346
448
549
651
753
855
957
1059
1161
1263
1365
1467
1569
1670
1772
1873
1975
2076
2177
2278
2379
2480
2580
2681
2781
2882
2982
3082
3183

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the miserable band about 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
113564
203466
303268
403169
503070
602872
702773
802674
902575
1002377
1102278
1202179
1302080
1401981
1501783
1601684
1701585
1801486
1901387
2001288
2101189
2201090
2301090
240991
250892
260793
270694
280694
290595
300595
310595

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
411calm
511calm
611calm
711calm
811calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 5:36 AM to 5:30 AM, and sunset from 5:58 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:365:58
212.45:355:58
312.45:355:58
412.45:355:59
512.45:345:59
612.45:345:59
712.45:345:59
812.45:335:59
912.45:335:59
1012.45:335:59
1112.55:326:00
1212.55:326:00
1312.55:326:00
1412.55:326:00
1512.55:326:00
1612.55:316:01
1712.55:316:01
1812.55:316:01
1912.55:316:01
2012.55:316:02
2112.55:306:02
2212.55:306:02
2312.55:306:02
2412.55:306:03
2512.55:306:03
2612.65:306:03
2712.65:306:03
2812.65:306:04
2912.65:306:04
3012.65:306:04
3112.65:306:04

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.36 kWh/m².

For context, solar energy here swings from a low near 4.2 kWh/m² to a high of 6.2 kWh/m² in April across the year — May's 5.36 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.8Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for Iloilo

In seasonPeak

In May, Iloilo sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Iloilo sits in the Pacific typhoon belt; the season peaks July–October.

Iloilo's rainy season runs June–October, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Iloilo?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.9
Sightseeing
8th-best month of the year
4.8
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Iloilo.

What to pack for Iloilo in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Iloilo sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Iloilo in May

The nearest coast averages about 30°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 22 km away) is warmest in May 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.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Iloilo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks 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 Iloilo peaks around March 24 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 24UV 14Nov 21UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec10Very high
Location & terrain

Where is Iloilo?

Iloilo sits at 10.7°N, 122.6°E, 8 m above sea level, in Philippines. The nearest listed city is Pulupandan, 33 km away.

Topography around Iloilo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Iloilo.

Within 3 km, the terrain around Iloilo has only modest variations in elevation — a maximum elevation change of 22 m around an average of 4 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 261 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,458 m.

The land around Iloilo is covered by water (42%) and artificial surfaces (41%) within 3 km, trees (40%) and water (29%) within 16 km, and trees (43%) and water (42%) within 80 km.

3 km
22 m
16 km
261 m
80 km
2,458 m
treesgrasslandcroplandartificial surfaceswatermangroves
May weather nearby: Pulupandan 33 km · Bago City 35 km · Taloc 39 km · Pacol 39 km · Sumag 40 km · Bacolod City 42 km · Talisay 44 km · Mansilingan 46 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
Roman Catholic 79%other 8%Muslim 6%other Christian 4%

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 Iloilo (10.6969°, 122.5644°, elevation 8 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).