Vigan weather in May

In May, Vigan sees average daytime highs of 29°C and overnight lows near 25°C, with 203 mm of rain across 22.9 wet days and about 12.8 hours of daylight. It is the 1st-warmest and 6th-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 25% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of May to 13 hours by month's end. Set against the rest of the year, May is Vigan's 8th-clearest and 12th-windiest month. For the whole year in context, see Vigan's year-round climate.

Daytime high
29°
1st warmest
Overnight low
25°
12th coldest
Rainfall
203 mm
22.9 wet days
Daylight
12 h 48 min
5:30 AM – 6:19 PM
Cloud cover
66%
8th clearest
Wind
8 km/h
12th windiest
Solar energy
5.97 kWh/m²
Travel score
3.7
out of 10

Vigan is city of the Philippines and capital of the province of Ilocos Sur.

Density
1,933/km²
people per km²
Founded
1572

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 Vigan reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°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)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312925

How May really feels in Vigan

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.

Vigan weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 22°163.111.17.7
Feb28° / 22°16311.47.7
Mar29° / 23°235.611.96.7
Apr29° / 25°491212.45.4
May29° / 25°20322.912.83.7
Jun29° / 25°36727.2133.1
Jul29° / 25°59029.212.93.1
Aug28° / 25°61728.812.63.2
Sep28° / 25°41127.612.13.3
Oct29° / 24°24019.511.64.3
Nov29° / 24°9312.811.25.2
Dec28° / 23°457.4116.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 58%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27129
36832
46634
56436
66238
76040
85842
95545
105347
115149
124951
134753
144456
154159
164060
173763
183565
193466
203268
212971
222773
232674
242674
252476
262476
272377
282377
292278
302179
312179

Chance of precipitation in May

Any precipitation

Vigan gets around 203 mm of rain over 22.9 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 87% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
153
254
356
457
559
660
762
863
965
1067
1168
1270
1371
1473
1574
1676
1777
1878
1979
2080
2182
2283
2384
2484
2585
2686
2786
2886
2987
3087
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 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
127622
227523
327424
427226
527028
626929
716831
816732
916534
1016435
1116336
1216138
1316039
1416039
1515940
1606040
1706040
1806040
1906040
2006040
2105941
2205941
2305941
2405941
2505842
2605842
2705743
2805644
2905545
3005446
3105347

Wind in May

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

Across May, daily wind ranges from about 7 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
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 36 min at the start of May to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over May. Sunrise moves from 5:37 AM to 5:27 AM, and sunset from 6:14 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:376:14
212.65:366:15
312.75:366:15
412.75:356:15
512.75:356:16
612.75:346:16
712.75:346:16
812.75:336:17
912.75:336:17
1012.75:326:17
1112.85:326:18
1212.85:326:18
1312.85:316:18
1412.85:316:19
1512.85:306:19
1612.85:306:19
1712.85:306:20
1812.85:296:20
1912.95:296:20
2012.95:296:21
2112.95:296:21
2212.95:286:22
2312.95:286:22
2412.95:286:22
2512.95:286:23
2612.95:286:23
2712.95:276:23
2812.95:276:24
2913.05:276:24
3013.05:276:24
3113.05:276:25

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.97 kWh/m².

For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 6.68 kWh/m² in April across the year — May's 5.97 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.5Intense
46.5Intense
56.5Intense
66.4Intense
76.4Intense
86.3Intense
96.3Intense
106.2Intense
116.2Intense
126.1Intense
136.1Intense
146.0Intense
156.0Bright
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.8Bright
215.7Bright
225.7Bright
235.7Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Hazard calendar for Vigan

In seasonPeak

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

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

Vigan's monsoon runs June–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 Vigan?

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

3.7
Sightseeing
8th-best month of the year
5.0
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Vigan.

What to pack for Vigan in May

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

In May, Vigan sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Vigan 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
Mar28Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Vigan 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 Vigan peaks around August 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 16UV 13Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Vigan 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 Vigan is worst in March — around 16 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 2416 µg/m³Dec 159 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Moderate
Mar16Moderate
Apr16Moderate
May11Good
Jun10Good
Jul9Good
Aug10Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Vigan?

Vigan sits at 17.6°N, 120.4°E, 19 m above sea level, in Philippines. The nearest listed city is Bantay, 1.0 km away.

Topography around Vigan

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

Within 3 km, the terrain around Vigan has only modest variations in elevation — a maximum elevation change of 45 m around an average of 9 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,097 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,557 m.

The land around Vigan is covered by cropland (44%), trees (31%) and artificial surfaces (21%) within 3 km, water (50%) and trees (29%) within 16 km, and trees (49%) and water (38%) within 80 km.

3 km
45 m
16 km
1,097 m
80 km
2,557 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Bantay 1.0 km · Bangued 27 km · Batac City 57 km · Santa Maria 70 km · San Nicolas 70 km · Tagudin 71 km · Laoag 73 km · Bontoc 83 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 Vigan (17.5747°, 120.3869°, elevation 19 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).