Calatagan weather in May

In May, Calatagan sees average daytime highs of 29°C and overnight lows near 27°C, with 109 mm of rain across 14.6 wet days and about 12.6 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 27% 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 Calatagan's 7th-clearest and 11th-windiest month. For the whole year in context, see Calatagan's year-round climate.

Daytime high
29°
1st warmest
Overnight low
27°
12th coldest
Rainfall
109 mm
14.6 wet days
Daylight
12 h 36 min
5:35 AM – 6:13 PM
Cloud cover
64%
7th clearest
Wind
13 km/h
11th windiest
Solar energy
6.2 kWh/m²
Travel score
4.8
out of 10

Calatagan is municipality of the Philippines in the province of Batangas.

Density
144/km²
people per km²
Founded
1912

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 29°C through the month.

A typical May day in Calatagan reaches about 29°C in the afternoon and slips back to 27°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, May runs on par with April and on par with June.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
13027
23027
33027
43027
53027
63027
73027
83027
92927
102927
112927
122927
132927
142927
152927
162927
172927
182927
192927
202927
212927
222927
232927
242927
252927
262927
272927
282927
292927
302927
312927

How May really feels in Calatagan

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
heat index over the day's high
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.

Calatagan weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°223.811.37.4
Feb27° / 24°212.711.57.6
Mar28° / 25°242.811.97.3
Apr29° / 26°183.212.36.5
May29° / 27°10914.612.64.8
Jun29° / 27°22022.412.83.8
Jul28° / 26°37526.512.73.6
Aug28° / 26°29225.612.53.9
Sep28° / 26°31425.612.13.8
Oct28° / 26°1812011.74.5
Nov28° / 26°8910.411.45.8
Dec28° / 25°1279.211.26.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% 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 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26436
36337
46238
56040
65941
75743
85644
95545
105347
115248
124951
134753
144555
154555
164357
174060
183961
193763
203664
213466
223268
233169
242971
252872
262872
272773
282674
292674
302674
312674

Chance of precipitation in May

Any precipitation

Calatagan gets around 109 mm of rain over 14.6 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 46% and peaks near 64% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
122
224
325
427
528
630
731
833
935
1036
1138
1240
1342
1444
1546
1648
1750
1852
1954
2056
2157
2259
2360
2461
2562
2663
2763
2863
2964
3064
3164

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 76% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
14555
24357
34060
43862
53664
63466
73268
83070
92971
102773
112674
122476
132377
142278
152179
162080
171981
181882
191882
201882
211783
221783
231783
241783
251684
261684
271684
281684
291684
301684
311684

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012light breeze
3112light breeze

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 5:40 AM to 5:32 AM, and sunset from 6:09 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:406:09
212.55:406:09
312.55:396:10
412.55:396:10
512.55:386:10
612.55:386:10
712.65:376:11
812.65:376:11
912.65:376:11
1012.65:366:11
1112.65:366:12
1212.65:366:12
1312.65:356:12
1412.65:356:12
1512.65:356:13
1612.65:356:13
1712.65:346:13
1812.75:346:13
1912.75:346:14
2012.75:346:14
2112.75:336:14
2212.75:336:15
2312.75:336:15
2412.75:336:15
2512.75:336:16
2612.75:336:16
2712.75:336:16
2812.75:336:16
2912.75:326:17
3012.75:326:17
3112.75:326:17

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.2 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 6.81 kWh/m² in April across the year — May's 6.2 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.6Intense
46.6Intense
56.6Intense
66.5Intense
76.5Intense
86.5Intense
96.4Intense
106.4Intense
116.4Intense
126.3Intense
136.3Intense
146.3Intense
156.2Intense
166.2Intense
176.2Intense
186.1Intense
196.1Intense
206.1Intense
216.0Intense
226.0Intense
236.0Bright
246.0Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.8Bright
315.8Bright
Planning a trip in May

Hazard calendar for Calatagan

In seasonPeak

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

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

Calatagan's monsoon runs June–October, 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 Calatagan?

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

4.8
Sightseeing
7th-best month of the year
6.3
Beach & pool
7th-best month of the year

May is a reasonable time to visit Calatagan for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Calatagan in May

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

In May, Calatagan sees daytime highs around 29°C and nights near 27°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Calatagan 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 offshore 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
Mar27Warm
Apr28Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in Calatagan 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 Calatagan peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 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 18UV 14Nov 22UV 9
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar12Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Calatagan 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 Calatagan is worst in April — around 15 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodApr 1215 µg/m³Jun 1711 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun11Good
Jul12Moderate
Aug13Moderate
Sep12Good
Oct12Good
Nov11Good
Dec12Good
Location & terrain

Where is Calatagan?

Calatagan sits at 13.8°N, 120.6°E, 13 m above sea level, in Philippines. The nearest listed city is Balayan, 16 km away.

Topography around Calatagan

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

Within 3 km, the terrain around Calatagan has only modest variations in elevation — a maximum elevation change of 68 m around an average of 9 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 338 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,539 m.

The land around Calatagan is covered by water (40%) and trees (31%) within 3 km, water (80%) within 16 km, and water (60%) and trees (30%) within 80 km.

3 km
68 m
16 km
338 m
80 km
2,539 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Balayan 16 km · Calaca 23 km · Nasugbu 26 km · Taal 32 km · Bauan 41 km · San Pascual 42 km · General Emilio Aguinaldo 43 km · Tagaytay 44 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 Calatagan (13.8322°, 120.6322°, elevation 13 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).