Passi weather in May

In May, Passi sees average daytime highs of 33°C and overnight lows near 26°C, with 131 mm of rain across 22.8 wet days and about 12.5 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 18% 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 Passi's 5th-clearest and 11th-windiest month. For the whole year in context, see Passi's year-round climate.

Daytime high
33°
1st warmest
Overnight low
26°
12th coldest
Rainfall
131 mm
22.8 wet days
Daylight
12 h 30 min
5:30 AM – 6:01 PM
Cloud cover
71%
5th clearest
Wind
9 km/h
11th windiest
Solar energy
5.51 kWh/m²
Travel score
2.6
out of 10

Passi is city of the Philippines in the province of Iloilo.

Density
170/km²
people per km²
Founded
1766

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 33°C through the month.

A typical May day in Passi reaches about 33°C in the afternoon and slips back to 26°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°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)
13326
23326
33326
43326
53326
63326
73326
83326
93326
103326
113326
123326
133326
143326
153326
163326
173326
183326
193326
203326
213326
223326
233326
243326
253326
263326
273326
283326
293226
303226
313226

How May really feels in Passi

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.

Passi weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°12118.611.44.2
Feb30° / 24°9614.411.64.4
Mar31° / 25°9015.211.94.0
Apr33° / 25°7213.212.23.5
May33° / 26°13122.812.52.6
Jun32° / 25°18926.612.62.4
Jul31° / 25°25027.912.62.5
Aug31° / 25°20427.212.42.6
Sep31° / 25°23927.512.12.5
Oct31° / 25°23527.511.82.6
Nov30° / 25°17724.911.53.0
Dec30° / 25°20824.911.43.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 67%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25050
35050
44951
54753
64654
74357
84258
94159
103961
113862
123664
133664
143466
153466
163169
173169
183070
192971
202872
212773
222575
232575
242476
252476
262377
272278
282278
292080
302080
312080

Chance of precipitation in May

Any precipitation

Passi gets around 131 mm of rain over 22.8 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 72% and peaks near 84% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
156
257
358
460
561
662
763
864
965
1067
1168
1269
1370
1471
1573
1674
1775
1876
1977
2078
2179
2280
2381
2481
2582
2683
2783
2883
2983
3084
3184

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11189
21090
31090
4991
5892
6892
7793
8793
9694
10694
11595
12595
13595
14595
15595
16595
17496
18496
19496
20496
21496
22496
23397
24397
25397
26298
27298
28298
29199
30199
31199

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 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
188calm
198calm
208calm
218calm
228calm
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 5:35 AM to 5:29 AM, and sunset from 5:58 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:355:58
212.45:355:58
312.45:345:59
412.45:345:59
512.45:335:59
612.45:335:59
712.45:335:59
812.45:325:59
912.55:326:00
1012.55:326:00
1112.55:326:00
1212.55:316:00
1312.55:316:00
1412.55:316:01
1512.55:316:01
1612.55:306:01
1712.55:306:01
1812.55:306:01
1912.55:306:02
2012.55:306:02
2112.55:306:02
2212.55:296:02
2312.65:296:03
2412.65:296:03
2512.65:296:03
2612.65:296:03
2712.65:296:04
2812.65:296:04
2912.65:296:04
3012.65:296:04
3112.65:296:05

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.51 kWh/m².

For context, solar energy here swings from a low near 3.97 kWh/m² to a high of 6.17 kWh/m² in April across the year — May's 5.51 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.6Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in May

Hazard calendar for Passi

In seasonPeak

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

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

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

Is May a good time to visit Passi?

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

2.6
Sightseeing
7th-best month of the year
4.5
Beach & pool
6th-best month of the year

May is a weaker month for outdoor sightseeing in Passi.

What to pack for Passi in May

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

In May, Passi sees daytime highs around 33°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Passi 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 36 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
Jul30Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Passi 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 Passi peaks around April 9 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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 highApr 9UV 14Dec 11UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in Passi in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Passi is worst in September — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateSep 1717 µg/m³Feb 1912 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb12Good
Mar12Good
Apr13Moderate
May15Moderate
Jun15Moderate
Jul16Moderate
Aug16Moderate
Sep17Moderate
Oct16Moderate
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Passi?

Passi sits at 11.1°N, 122.6°E, 42 m above sea level, in Philippines. The nearest listed city is Enrique B. Magalona, 45 km away.

Topography around Passi

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

Within 3 km, the terrain around Passi has only modest variations in elevation — a maximum elevation change of 161 m around an average of 53 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 570 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,035 m.

The land around Passi is covered by trees (57%) and cropland (23%) within 3 km, trees (73%) within 16 km, and trees (47%) and water (38%) within 80 km.

3 km
161 m
16 km
570 m
80 km
2,035 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Enrique B. Magalona 45 km · Iloilo 46 km · Victorias 52 km · Binonga 53 km · Talisay 54 km · Roxas City 54 km · Manapla 55 km · Bacolod City 59 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 Passi (11.1078°, 122.6419°, elevation 42 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).