Vila Franca de Xira weather in May

In May, Vila Franca de Xira sees average daytime highs of 22°C and overnight lows near 13°C, with 50 mm of rain across 7 wet days and about 14.1 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 24°C by the end. The sky is clear or mostly clear about 42% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of May to 14 h 30 min by month's end. Set against the rest of the year, May is Vila Franca de Xira's 5th-clearest and 4th-windiest month. For the whole year in context, see Vila Franca de Xira's year-round climate.

Daytime high
22°
5th warmest
Overnight low
13°
7th coldest
Rainfall
50 mm
7 wet days
Daylight
14 h 06 min
5:29 AM – 7:36 PM
Cloud cover
47%
5th clearest
Wind
14 km/h
4th windiest
Solar energy
6.62 kWh/m²
Travel score
7.4
out of 10

Vila Franca de Xira is city seat of Vila Franca de Xira municipality.

Air quality
Good
PM10 22.4 µg/m³ · 2010

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 24°C by the end.

A typical May day in Vila Franca de Xira reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 29°C. Set against its neighbours, May runs about 3°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12012
22112
32112
42112
52112
62112
72112
82112
92112
102112
112212
122212
132213
142213
152213
162213
172213
182313
192313
202313
212313
222313
232313
242314
252414
262414
272414
282414
292414
302414
312414

Vila Franca de Xira weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 668.79.64.3
Feb15° / 50710.55.0
Mar18° / 578.411.76.2
Apr19° / 11°578.7136.5
May22° / 13°50714.17.4
Jun26° / 15°122.614.78.3
Jul28° / 17°30.814.58.0
Aug29° / 17°61.313.57.5
Sep26° / 16°314.612.37.9
Oct22° / 14°789.2116.9
Nov17° / 10°809.79.95.6
Dec15° / 769.39.34.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35842
45842
55842
65842
75842
85941
95941
105941
116040
126040
136040
146139
156238
166238
176238
186337
196337
206436
216436
226436
236535
246535
256634
266634
276634
286733
296733
306634
316733

Chance of precipitation in May

Any precipitation

Vila Franca de Xira gets around 50 mm of rain over 7 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 22% and peaks near 26% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
326
426
526
626
726
826
925
1025
1125
1225
1325
1424
1524
1624
1723
1823
1922
2022
2121
2221
2320
2419
2519
2618
2717
2817
2916
3016
3115

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
185150
285150
384160
484160
583170
683170
782180
881181
980191
1080191
1179201
1279201
1378211
1477221
1576231
1675241
1773252
1873252
1972262
2070282
2168293
2267303
2366313
2465323
2564333
2662344
2762344
2861354
2960364
3060364
3159374

Wind in May

Winds average 14 km/h in May.

Across May, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:45 AM to 5:18 AM, and sunset from 7:21 PM to 7:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:457:21
213.65:447:22
313.75:427:23
413.75:417:24
513.85:407:25
613.85:397:26
713.85:387:27
813.95:377:28
913.95:367:29
1013.95:347:30
1114.05:337:31
1214.05:327:32
1314.05:317:33
1414.15:307:34
1514.15:307:35
1614.15:297:36
1714.25:287:37
1814.25:277:38
1914.25:267:39
2014.25:257:39
2114.35:247:40
2214.35:247:41
2314.35:237:42
2414.35:227:43
2514.45:227:44
2614.45:217:45
2714.45:207:45
2814.45:207:46
2914.55:197:47
3014.55:197:48
3114.55:187:48

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.62 kWh/m².

For context, solar energy here swings from a low near 1.96 kWh/m² to a high of 7.58 kWh/m² in July across the year — May's 6.62 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.4Intense
96.4Intense
106.4Intense
116.5Intense
126.5Intense
136.5Intense
146.6Intense
156.6Intense
166.6Intense
176.7Intense
186.7Intense
196.7Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.9Intense
266.9Intense
276.9Intense
286.9Intense
297.0Intense
307.0Intense
317.0Intense
Planning a trip in May

Is May a good time to visit Vila Franca de Xira?

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

7.4
Sightseeing
5th-best month of the year
5.3
Beach & pool
5th-best month of the year

May is one of the better times to visit Vila Franca de Xira for general sightseeing.

What to pack for Vila Franca de Xira in May

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

In May, Vila Franca de Xira sees daytime highs around 22°C and nights near 13°C. Pack sun protection. Worth having: light clothes. About 7 days see rain.

sun protectionlight clothes

Sea temperature near Vila Franca de Xira in May

The nearest coast averages about 16°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 38 km away) is warmest in August at about 18°C and coldest in February near 14°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Bracing
May16Cool
Jun17Cool
Jul18Cool
Aug18Cool
Sep18Cool
Oct18Cool
Nov17Cool
Dec15Cool

UV index in Vila Franca de Xira in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Vila Franca de Xira peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 16UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar6High
Apr8Very high
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct5High
Nov3Moderate
Dec2Low
Location & terrain

Where is Vila Franca de Xira?

Vila Franca de Xira sits at 39.0°N, 9.0°W, 15 m above sea level, in Portugal. The nearest listed city is Vialonga, 12 km away.

Topography around Vila Franca de Xira

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Vila Franca de Xira.

Within 3 km, the terrain around Vila Franca de Xira has only modest variations in elevation — a maximum elevation change of 213 m around an average of 61 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 439 m; within 80 km, large variations in elevation — a maximum elevation change of 674 m.

The land around Vila Franca de Xira is covered by grassland (29%) and cropland (28%) within 3 km, grassland (36%) and cropland (29%) within 16 km, and water (33%), grassland (32%) and trees (23%) within 80 km.

3 km
213 m
16 km
439 m
80 km
674 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Vialonga 12 km · Póvoa de Santa Iria 12 km · Santa Iria da Azóia 16 km · Azambuja 17 km · São João da Talha 17 km · Camarate 21 km · Loures 21 km · Sacavém 21 km

Portugal travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$32,082
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2022
Road deaths
8.2
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 612
Religion
Catholic 68%not applicable 13%no religion 12%no response 2%

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 Vila Franca de Xira (38.9552°, -8.9897°, elevation 15 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. 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).