Pórticos de San Antonio weather in May

In May, Pórticos de San Antonio sees average daytime highs of 18°C and overnight lows near 14°C, with 11 mm of rain across 2.1 wet days and about 13.6 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 58% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of May to 14 hours by month's end. Set against the rest of the year, May is Pórticos de San Antonio's 7th-clearest and 3rd-windiest month. For the whole year in context, see Pórticos de San Antonio's year-round climate.

Daytime high
18°
7th warmest
Overnight low
14°
7th coldest
Rainfall
11 mm
2.1 wet days
Daylight
13 h 42 min
4:55 AM – 6:34 PM
Cloud cover
37%
7th clearest
Wind
10 km/h
3rd windiest
Solar energy
7.39 kWh/m²
Travel score
7.5
out of 10

Pórticos de San Antonio is human settlement.

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 18°C through the month.

A typical May day in Pórticos de San Antonio reaches about 18°C in the afternoon and slips back to 14°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 21°C. Set against its neighbours, May runs about 1°C warmer than April and about 2°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11814
21814
31814
41814
51814
61814
71814
81814
91814
101814
111814
121814
131814
141814
151814
161814
171814
181814
191814
201814
211814
221814
231814
241814
251814
261814
271815
281815
291915
301915
311915

Pórticos de San Antonio weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 11°636.110.15.8
Feb16° / 11°79710.85.4
Mar16° / 12°535.911.85.8
Apr17° / 13°254.212.86.7
May18° / 14°112.113.67.5
Jun20° / 16°20.414.18.3
Jul22° / 18°20.413.98.8
Aug23° / 19°10.313.29.2
Sep23° / 18°40.812.29.0
Oct21° / 16°152.411.28.3
Nov19° / 14°263.610.37.4
Dec16° / 11°505.79.96.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% 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 22%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47525
57525
67426
77426
87426
97525
107624
117624
127624
137624
147822
157822
167822
177921
187921
197921
207921
218020
228020
238020
248020
258119
268119
278119
288119
298020
308119
318119

Chance of precipitation in May

Any precipitation

Pórticos de San Antonio gets around 11 mm of rain over 2.1 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 7% and peaks near 11% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
111
211
311
410
510
610
710
89
99
109
119
128
138
147
157
166
176
186
196
205
215
225
234
244
254
264
273
283
293
303
313

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 68% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
180200
279210
378220
478220
577230
676240
776240
875250
974260
1073270
1173270
1272280
1371290
1470300
1570300
1668311
1768311
1867321
1967321
2066331
2165341
2264351
2363361
2462371
2560391
2659401
2758411
2857421
2955441
3054451
3152462

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 18 min at the start of May to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:07 AM to 4:47 AM, and sunset from 6:23 PM to 6:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:076:23
213.35:066:24
313.35:066:25
413.35:056:25
513.45:046:26
613.45:036:27
713.45:026:28
813.55:016:28
913.55:006:29
1013.54:596:30
1113.54:586:31
1213.64:586:31
1313.64:576:32
1413.64:566:33
1513.64:556:33
1613.74:556:34
1713.74:546:35
1813.74:536:36
1913.74:536:36
2013.74:526:37
2113.84:516:38
2213.84:516:38
2313.84:506:39
2413.84:506:40
2513.94:496:40
2613.94:496:41
2713.94:486:42
2813.94:486:42
2913.94:486:43
3013.94:476:44
3114.04:476:44

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.39 kWh/m².

For context, solar energy here swings from a low near 3.16 kWh/m² to a high of 7.97 kWh/m² in June across the year — May's 7.39 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.2Intense
37.2Intense
47.2Intense
57.2Intense
67.2Intense
77.2Intense
87.2Intense
97.3Intense
107.3Intense
117.3Intense
127.3Intense
137.3Intense
147.3Intense
157.4Intense
167.4Intense
177.4Intense
187.4Intense
197.4Intense
207.5Intense
217.5Intense
227.5Intense
237.5Intense
247.5Intense
257.6Intense
267.6Intense
277.6Intense
287.6Intense
297.7Intense
307.7Intense
317.7Intense
Planning a trip in May

Is May a good time to visit Pórticos de San Antonio?

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

7.5
Sightseeing
6th-best month of the year
2.6
Beach & pool
7th-best month of the year

May is one of the better times to visit Pórticos de San Antonio for general sightseeing.

What to pack for Pórticos de San Antonio in May

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

In May, Pórticos de San Antonio sees daytime highs around 18°C and nights near 14°C. Pack sun protection.

sun protection

Sea temperature near Pórticos de San Antonio in May

The nearest coast averages about 17°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 August at about 21°C and coldest in February near 15°C.

It's comfortable for a long swim from Jul 18 to Sep 29 — about 2.4 months when the water holds above 20°C.

14°16°18°20°22°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb15Cool
Mar16Cool
Apr16Cool
May17Cool
Jun18Cool
Jul20Refreshing
Aug21Refreshing
Sep21Refreshing
Oct19Cool
Nov18Cool
Dec16Cool

UV index in Pórticos de San Antonio in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Pórticos de San Antonio peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 11Dec 17UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Pórticos de San Antonio 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 Pórticos de San Antonio is worst in October — around 33 µg/m³ PM2.5 (moderate), about 5.4× the cleanest month (May, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateOct 1631 µg/m³May 176 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr9Good
May6Good
Jun9Good
Jul8Good
Aug9Good
Sep16Moderate
Oct33Moderate
Nov13Moderate
Dec17Moderate
Location & terrain

Where is Pórticos de San Antonio?

Pórticos de San Antonio sits at 32.4°N, 117.0°W, 275 m above sea level, in Mexico. The nearest listed city is La Joya, 3.0 km away.

Topography around Pórticos de San Antonio

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

Within 3 km, the terrain around Pórticos de San Antonio has significant variations in elevation — a maximum elevation change of 266 m around an average of 237 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 691 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,966 m.

The land around Pórticos de San Antonio is covered by grassland (44%) and artificial surfaces (37%) within 3 km, artificial surfaces (32%), grassland (28%) and water (27%) within 16 km, and water (36%) and shrubs (28%) within 80 km.

3 km
266 m
16 km
691 m
80 km
1,966 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: La Joya 3.0 km · Villa del Prado 2da Sección 6.0 km · Tijuana 7.0 km · Rosarito 9.0 km · Las Delicias 9.0 km · Imperial Beach 17 km · Terrazas del Valle 20 km · Chula Vista 22 km

Mexico travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 / 127 V · 60 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$13,889
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
12.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 440
Religion
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 1%

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 Pórticos de San Antonio (32.4425°, -117.0342°, elevation 275 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. 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).