Calasiao weather in May

In May, Calasiao sees average daytime highs of 33°C and overnight lows near 26°C, with 193 mm of rain across 19.5 wet days and about 12.7 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 33°C in the first days to 32°C by the end. The sky is clear or mostly clear about 20% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 36 min at the start of May to 12 h 54 min by month's end. Set against the rest of the year, May is Calasiao's 8th-clearest and 12th-windiest month. For the whole year in context, see Calasiao's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
26°
12th coldest
Rainfall
193 mm
19.5 wet days
Daylight
12 h 42 min
5:32 AM – 6:17 PM
Cloud cover
69%
8th clearest
Wind
8 km/h
12th windiest
Solar energy
5.79 kWh/m²
Travel score
2.9
out of 10

Calasiao is municipality of the Philippines in the province of Pangasinan.

Density
2,082/km²
people per km²
Founded
1592

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 33°C in the first days to 32°C by the end.

A typical May day in Calasiao reaches about 33°C in the afternoon and slips back to 26°C overnight — a 6°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.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
13326
23326
33326
43326
53326
63326
73326
83326
93326
103326
113326
123326
133326
143326
153326
163326
173226
183226
193226
203226
213226
223226
233226
243226
253226
263226
273226
283226
293226
303226
313226

How May really feels in Calasiao

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.

Calasiao weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 23°91.711.26.6
Feb30° / 23°121.911.56.2
Mar31° / 24°193.511.95.2
Apr33° / 26°346.812.34.0
May33° / 26°19319.512.72.9
Jun31° / 26°2432412.92.7
Jul30° / 25°40028.212.92.7
Aug30° / 25°40928.212.52.8
Sep30° / 25°32426.112.13.0
Oct30° / 25°16913.511.64.4
Nov30° / 25°545.411.35.4
Dec30° / 24°344.711.16.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26238
36139
45941
55743
65545
75347
85149
95050
104753
114654
124456
134357
144060
153862
163565
173466
183169
192971
202971
212674
222476
232377
242179
251981
261981
271981
281783
291783
301783
311783

Chance of precipitation in May

Any precipitation

Calasiao gets around 193 mm of rain over 19.5 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 62% and peaks near 79% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
136
237
339
441
543
645
747
848
950
1052
1154
1256
1358
1460
1562
1664
1766
1868
1969
2071
2173
2274
2375
2476
2577
2678
2778
2879
2979
3079
3179

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 65% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
136235
236037
325939
425741
525543
625345
715247
814950
914752
1014554
1114356
1204159
1303961
1403763
1503565
1603367
1703169
1802971
1902674
2002476
2102278
2202080
2301882
2401783
2501684
2601585
2701486
2801387
2901387
3001288
3101288

Wind in May

Winds average 8 km/h in May, the calmest month.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
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 36 min at the start of May to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:39 AM to 5:30 AM, and sunset from 6:13 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:396:13
212.65:386:13
312.65:386:13
412.65:376:14
512.65:376:14
612.65:366:14
712.65:366:14
812.75:356:15
912.75:356:15
1012.75:356:15
1112.75:346:16
1212.75:346:16
1312.75:336:16
1412.75:336:16
1512.75:336:17
1612.75:326:17
1712.85:326:17
1812.85:326:18
1912.85:326:18
2012.85:316:18
2112.85:316:19
2212.85:316:19
2312.85:316:19
2412.85:316:20
2512.85:306:20
2612.85:306:20
2712.85:306:21
2812.95:306:21
2912.95:306:21
3012.95:306:22
3112.95:306:22

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.79 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 6.5 kWh/m² in April across the year — May's 5.79 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.3Intense
46.3Intense
56.3Intense
66.2Intense
76.2Intense
86.1Intense
96.1Intense
106.0Intense
116.0Bright
126.0Bright
135.9Bright
145.9Bright
155.8Bright
165.8Bright
175.7Bright
185.7Bright
195.7Bright
205.6Bright
215.6Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in May

Hazard calendar for Calasiao

In seasonPeak

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

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

Calasiao's monsoon runs May–September, when most of the year's rain falls.

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

Is May a good time to visit Calasiao?

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

2.9
Sightseeing
9th-best month of the year
5.0
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Calasiao.

What to pack for Calasiao in May

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

In May, Calasiao sees daytime highs around 33°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

Sea temperature near Calasiao 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 13 km away) is warmest in June 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 Calasiao 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 Calasiao peaks around August 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 14UV 13Dec 12UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul13Extreme
Aug13Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Calasiao 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 Calasiao is worst in November — around 38 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorNov 2138 µg/m³Aug 1326 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb31Moderate
Mar33Moderate
Apr30Moderate
May26Moderate
Jun28Moderate
Jul26Moderate
Aug26Moderate
Sep27Moderate
Oct32Moderate
Nov38Poor
Dec37Poor
Location & terrain

Where is Calasiao?

Calasiao sits at 16.0°N, 120.4°E, 9 m above sea level, in Philippines. The nearest listed city is Dagupan, 5.0 km away.

Topography around Calasiao

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

Within 3 km, the terrain around Calasiao has only modest variations in elevation — a maximum elevation change of 13 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 73 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,431 m.

The land around Calasiao is covered by trees (38%) and cropland (36%) within 3 km, cropland (39%), water (27%) and trees (26%) within 16 km, and trees (43%), water (26%) and cropland (22%) within 80 km.

3 km
13 m
16 km
73 m
80 km
2,431 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Dagupan 5.0 km · Santa Barbara 5.0 km · Mangaldan 8.0 km · Binmaley 10 km · Lingayen 14 km · Manaoag 14 km · Domalanoan 16 km · Urdaneta 23 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 Calasiao (16.0111°, 120.36°, elevation 9 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).