Calapan weather in May

In May, Calapan sees average daytime highs of 31°C and overnight lows near 26°C, with 173 mm of rain across 23.1 wet days and about 12.6 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 42 min by month's end. Set against the rest of the year, May is Calapan's 4th-clearest and 8th-windiest month. For the whole year in context, see Calapan's year-round climate.

Daytime high
31°
1st warmest
Overnight low
26°
12th coldest
Rainfall
173 mm
23.1 wet days
Daylight
12 h 36 min
5:33 AM – 6:10 PM
Cloud cover
67%
4th clearest
Wind
6 km/h
8th windiest
Solar energy
6.06 kWh/m²
Travel score
3.0
out of 10

Calapan is city of the Philippines and capital of the province of Oriental Mindoro.

Density
264/km²
people per km²
Founded
1917

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 31°C through the month.

A typical May day in Calapan reaches about 31°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 33°C. Set against its neighbours, May runs about 1°C warmer than April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13126
23126
33126
43126
53126
63126
73126
83126
93126
103126
113126
123126
133126
143126
153126
163126
173126
183126
193126
203126
213126
223126
233126
243126
253126
263126
273126
283126
293126
303126
313126

How May really feels in Calapan

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
22 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.

Calapan weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°22225.211.34.2
Feb28° / 23°16418.811.64.6
Mar29° / 24°13818.411.94.5
Apr31° / 25°8415.312.34.2
May31° / 26°17323.112.63.0
Jun31° / 26°22525.212.82.7
Jul30° / 25°31227.112.72.8
Aug31° / 25°2382512.42.9
Sep30° / 25°32026.212.12.8
Oct30° / 25°26426.611.73.1
Nov29° / 25°28126.811.43.3
Dec28° / 24°43928.211.23.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% 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 62%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26040
35941
45743
55644
65446
75347
85248
94951
104753
114555
124456
134258
143961
153862
163565
173466
183268
193169
202971
212872
222674
232674
242575
252377
262377
272377
282278
292278
302278
312377

Chance of precipitation in May

Any precipitation

Calapan gets around 173 mm of rain over 23.1 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 73% 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 (%)
161
263
364
465
566
666
767
867
968
1068
1169
1269
1370
1471
1572
1673
1774
1875
1976
2077
2178
2279
2380
2481
2582
2682
2783
2883
2983
3083
3182

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 89% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
12476
22377
32179
42080
51981
61882
71783
81684
91585
101486
111387
121288
131288
141189
151090
16991
17991
18892
19793
20793
21694
22694
23595
24496
25496
26397
27397
28397
29397
30397
31397

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 5 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 42 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 5:38 AM to 5:31 AM, and sunset from 6:07 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:386:07
212.55:386:07
312.55:376:07
412.55:376:07
512.55:376:07
612.55:366:08
712.55:366:08
812.55:356:08
912.65:356:08
1012.65:356:09
1112.65:346:09
1212.65:346:09
1312.65:346:09
1412.65:346:10
1512.65:336:10
1612.65:336:10
1712.65:336:10
1812.65:336:11
1912.65:326:11
2012.75:326:11
2112.75:326:11
2212.75:326:12
2312.75:326:12
2412.75:316:12
2512.75:316:13
2612.75:316:13
2712.75:316:13
2812.75:316:14
2912.75:316:14
3012.75:316:14
3112.75:316:14

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.06 kWh/m².

For context, solar energy here swings from a low near 4.1 kWh/m² to a high of 6.57 kWh/m² in April across the year — May's 6.06 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.0Intense
186.0Intense
196.0Bright
206.0Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in May

Hazard calendar for Calapan

In seasonPeak

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

Calapan 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 Calapan?

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

3.0
Sightseeing
8th-best month of the year
4.7
Beach & pool
4th-best month of the year

May is a weaker month for outdoor sightseeing in Calapan.

What to pack for Calapan in May

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

In May, Calapan sees daytime highs around 31°C and nights near 26°C. Pack light clothes, rain gear and sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Calapan 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 21 km away) is warmest in June at about 30°C and coldest in January near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar27Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Calapan in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Calapan peaks around August 17 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 highAug 17UV 14Dec 11UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar12Extreme
Apr13Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high
Location & terrain

Where is Calapan?

Calapan sits at 13.4°N, 121.2°E, 8 m above sea level, in Philippines. The nearest listed city is Rosario, 25 km away.

Topography around Calapan

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

Within 3 km, the terrain around Calapan has only modest variations in elevation — a maximum elevation change of 190 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 190 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,538 m.

The land around Calapan is covered by trees (38%) and water (35%) within 3 km, water (58%) and cropland (20%) within 16 km, and water (47%) and trees (40%) within 80 km.

3 km
190 m
16 km
190 m
80 km
2,538 m
treesgrasslandcroplandartificial surfaceswatermangroves
May weather nearby: Rosario 25 km · Puerto Galera 27 km · Victoria 28 km · Batangas 41 km · Bauan 46 km · San Pascual 48 km · Pinamalayan 51 km · Cuenca 56 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 Calapan (13.4117°, 121.1803°, 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).