Roxas weather in May

In May, Roxas sees average daytime highs of 33°C and overnight lows near 23°C, with 274 mm of rain across 20.6 wet days and about 12.8 hours of daylight. It is the 2nd-warmest and 4th-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 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 Roxas's 4th-clearest and 10th-windiest month. For the whole year in context, see Roxas's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
23°
8th coldest
Rainfall
274 mm
20.6 wet days
Daylight
12 h 48 min
5:26 AM – 6:14 PM
Cloud cover
69%
4th clearest
Wind
5 km/h
10th windiest
Solar energy
5.81 kWh/m²
Travel score
2.8
out of 10

Roxas is municipality of the Philippines in the province of Isabela.

Density
90/km²
people per km²
Founded
1948

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 Roxas reaches about 33°C in the afternoon and slips back to 23°C overnight — a 9°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 about 1°C warmer than April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13223
23223
33223
43223
53223
63223
73223
83223
93223
103323
113323
123323
133323
143323
153324
163324
173324
183324
193324
203324
213324
223324
233324
243324
253324
263324
273324
283324
293324
303324
313324

How May really feels in Roxas

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
15 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.

Roxas weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 20°11916.311.15.5
Feb27° / 20°9413.711.45.7
Mar29° / 21°9414.211.95.3
Apr31° / 22°9513.812.44.1
May33° / 23°27420.612.82.8
Jun33° / 24°22922.4132.4
Jul32° / 24°31826.112.92.5
Aug32° / 24°32326.412.62.5
Sep31° / 24°2942412.12.9
Oct30° / 23°22419.611.63.9
Nov28° / 22°20018.611.24.6
Dec27° / 21°23920115.0

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 62%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25446
35248
45149
55050
64951
74852
84753
94654
104456
114357
124258
134159
143961
153862
163763
173664
183466
193466
203268
213169
223070
232872
242773
252773
262674
272674
282674
292575
302575
312575

Chance of precipitation in May

Any precipitation

Roxas gets around 274 mm of rain over 20.6 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 66% and peaks near 81% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
148
249
350
451
552
653
754
855
956
1057
1158
1259
1361
1462
1564
1666
1768
1870
1971
2073
2175
2276
2377
2479
2580
2680
2781
2881
2981
3081
3181

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 49% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
147026
246828
346729
446630
536532
636433
736235
836136
926137
1025939
1125840
1225642
1315643
1415445
1515247
1615148
1714950
1814752
1914554
2004357
2104159
2204060
2303862
2403664
2503466
2603367
2703268
2803070
2903070
3002971
3102872

Wind in May

Winds average 5 km/h in May.

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

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

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 5:32 AM to 5:23 AM, and sunset from 6:09 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:326:09
212.65:326:09
312.65:316:10
412.75:316:10
512.75:306:10
612.75:306:10
712.75:296:11
812.75:296:11
912.75:286:11
1012.75:286:12
1112.75:286:12
1212.85:276:12
1312.85:276:13
1412.85:266:13
1512.85:266:13
1612.85:266:14
1712.85:256:14
1812.85:256:14
1912.85:256:15
2012.85:256:15
2112.95:246:15
2212.95:246:16
2312.95:246:16
2412.95:246:17
2512.95:246:17
2612.95:236:17
2712.95:236:18
2812.95:236:18
2912.95:236:18
3012.95:236:19
3112.95:236:19

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.81 kWh/m².

For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 5.9 kWh/m² in April across the year — May's 5.81 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Intense
46.0Intense
56.0Intense
66.0Intense
76.0Bright
86.0Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in May

Is May a good time to visit Roxas?

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

2.8
Sightseeing
9th-best month of the year
4.8
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Roxas.

What to pack for Roxas in May

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

In May, Roxas sees daytime highs around 33°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

UV index in Roxas 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 Roxas peaks around August 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 19UV 13Dec 13UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Roxas 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 Roxas is worst in April — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1120 µg/m³Jun 2313 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar19Moderate
Apr20Moderate
May15Moderate
Jun13Moderate
Jul13Moderate
Aug14Moderate
Sep16Moderate
Oct15Moderate
Nov15Moderate
Dec14Moderate
Location & terrain

Where is Roxas?

Roxas sits at 17.1°N, 121.6°E, 60 m above sea level, in Philippines. The nearest listed city is San Mateo, 27 km away.

Topography around Roxas

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

Within 3 km, the terrain around Roxas has only modest variations in elevation — a maximum elevation change of 26 m around an average of 56 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 378 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,660 m.

The land around Roxas is covered by cropland (77%) within 3 km, cropland (60%) and trees (23%) within 16 km, and trees (66%) and cropland (24%) within 80 km.

3 km
26 m
16 km
378 m
80 km
2,660 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: San Mateo 27 km · Ilagan 29 km · Cabagan 38 km · Ramon 38 km · Alicia 39 km · Tabuk 43 km · Santiago 49 km · Diadi 52 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 Roxas (17.1189°, 121.6201°, elevation 60 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. 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).