San Mariano weather in May

In May, San Mariano sees average daytime highs of 30°C and overnight lows near 22°C, with 473 mm of rain across 26.6 wet days and about 12.3 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 4% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of May to 12 h 24 min by month's end. Set against the rest of the year, May is San Mariano's 7th-clearest and 11th-windiest month. For the whole year in context, see San Mariano's year-round climate.

Daytime high
30°
1st warmest
Overnight low
22°
12th coldest
Rainfall
473 mm
26.6 wet days
Daylight
12 h 18 min
5:22 AM – 5:42 PM
Cloud cover
84%
7th clearest
Wind
4 km/h
11th windiest
Solar energy
5.1 kWh/m²
Travel score
3.0
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical May day in San Mariano reaches about 30°C in the afternoon and slips back to 22°C overnight — a 7°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.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
263022
273022
283022
293022
303022
313022

How May really feels in San Mariano

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.

San Mariano weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 21°38724.411.64.1
Feb28° / 21°34119.711.84.2
Mar29° / 21°32222.311.94.0
Apr30° / 22°31922.812.23.5
May30° / 22°47326.612.33.0
Jun29° / 22°52425.312.43.2
Jul29° / 22°33922.312.43.6
Aug30° / 22°28020.712.23.7
Sep30° / 22°25220.3123.6
Oct30° / 22°2982311.83.4
Nov29° / 22°37925.111.73.3
Dec28° / 22°38325.911.63.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 10% of May, with mostly cloudy or overcast conditions the remaining 87%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12278
22179
32080
41981
51882
61684
71684
81486
91486
101387
111387
121288
131288
141288
151288
161288
171288
181288
191288
201288
211288
221288
231288
241189
251189
261189
271090
28991
29991
30892
31892

Chance of precipitation in May

Any precipitation

San Mariano gets around 473 mm of rain over 26.6 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 85% and peaks near 86% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
182
283
383
484
584
685
785
885
985
1085
1186
1286
1386
1486
1586
1686
1786
1886
1986
2086
2186
2286
2386
2486
2585
2685
2786
2886
2986
3086
3186

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
12926
22926
31927
41927
51918
61918
71909
81909
91909
1018910
1118910
1218910
1318910
1418910
1518910
1618910
1709010
1809010
1909010
2018910
211909
221909
231909
241909
251918
261918
271918
281918
291927
301927
311927

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 18 min at the start of May to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over May. Sunrise moves from 5:25 AM to 5:21 AM, and sunset from 5:41 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:255:41
212.35:255:41
312.35:255:41
412.35:255:41
512.35:245:41
612.35:245:41
712.35:245:41
812.35:235:41
912.35:235:42
1012.35:235:42
1112.35:235:42
1212.35:235:42
1312.35:225:42
1412.35:225:42
1512.35:225:42
1612.35:225:42
1712.35:225:43
1812.45:225:43
1912.45:225:43
2012.45:225:43
2112.45:225:43
2212.45:215:44
2312.45:215:44
2412.45:215:44
2512.45:215:44
2612.45:215:44
2712.45:215:45
2812.45:215:45
2912.45:215:45
3012.45:215:45
3112.45:215:45

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.1 kWh/m².

For context, solar energy here swings from a low near 4.03 kWh/m² to a high of 5.46 kWh/m² in April across the year — May's 5.1 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for San Mariano

In seasonPeak

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

San Mariano 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 San Mariano?

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

3.0
Sightseeing
12th-best month of the year
4.1
Beach & pool
12th-best month of the year

May is a weaker month for outdoor sightseeing in San Mariano.

What to pack for San Mariano in May

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

In May, San Mariano sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near San Mariano in May

The nearest coast averages about 29°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 44 km away) is warmest in June at about 30°C and coldest in February near 28°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Warm
Mar28Tropical
Apr29Tropical
May29Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in San Mariano 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 San Mariano peaks around March 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 22UV 14Dec 14UV 11
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec10Extreme

Air quality in San Mariano 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 San Mariano 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).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateSep 1817 µg/m³Feb 1711 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar11Good
Apr12Good
May13Moderate
Jun14Moderate
Jul15Moderate
Aug15Moderate
Sep17Moderate
Oct16Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is San Mariano?

San Mariano sits at 7.5°N, 126.0°E, 224 m above sea level, in Philippines. The nearest listed city is Nabunturan, 13 km away.

Topography around San Mariano

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

Within 3 km, the terrain around San Mariano has significant variations in elevation — a maximum elevation change of 586 m around an average of 246 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,307 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,636 m.

The land around San Mariano is covered by trees (96%) within 3 km, trees (91%) within 16 km, and trees (74%) and water (21%) within 80 km.

3 km
586 m
16 km
1,307 m
80 km
2,636 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Nabunturan 13 km · Compostela 22 km · New Corella 22 km · Maco 22 km · Magugpo Poblacion 22 km · Cabayangan 31 km · Monkayo 36 km · Panabo 41 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 San Mariano (7.5°, 126°, elevation 224 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).