San Juan Bautista weather in May

In May, San Juan Bautista sees average daytime highs of 24°C and overnight lows near 15°C, with 134 mm of rain across 8.7 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 22°C by the end. The sky is clear or mostly clear about 41% of the time in May, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of May to 10 h 30 min by month's end. Set against the rest of the year, May is San Juan Bautista's 11th-clearest and 7th-windiest month. For the whole year in context, see San Juan Bautista's year-round climate.

Daytime high
24°
10th warmest
Overnight low
15°
4th coldest
Rainfall
134 mm
8.7 wet days
Daylight
10 h 42 min
7:24 AM – 6:06 PM
Cloud cover
54%
11th clearest
Wind
12 km/h
7th windiest
Solar energy
3.15 kWh/m²
Travel score
7.1
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 22°C by the end.

A typical May day in San Juan Bautista reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 30°C. Set against its neighbours, May runs about 4°C cooler than April and about 2°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12616
22516
32516
42516
52516
62516
72516
82515
92515
102415
112415
122415
132415
142415
152415
162415
172315
182314
192314
202314
212314
222314
232314
242314
252214
262214
272214
282214
292214
302213
312213

How May really feels in San Juan Bautista

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

San Juan Bautista weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°12512.213.53.5
Feb32° / 22°1361212.93.8
Mar31° / 21°1251112.24.7
Apr28° / 18°1559.611.46.4
May24° / 15°1348.710.77.1
Jun22° / 13°1148.410.46.9
Jul22° / 12°948.210.57.1
Aug24° / 13°767.211.17.7
Sep26° / 15°1339.211.87.0
Oct28° / 18°18811.912.65.9
Nov30° / 19°16710.613.35.2
Dec32° / 21°1701213.64.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55545
65545
75347
85347
95347
105248
115248
125248
135248
145149
155050
165050
175149
185050
194951
205050
215050
225050
235050
245050
254951
265050
275050
285050
294951
305050
315050

Chance of precipitation in May

Any precipitation

San Juan Bautista gets around 134 mm of rain over 8.7 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 28% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
228
328
428
528
627
727
827
927
1027
1128
1228
1328
1428
1528
1628
1728
1828
1928
2028
2128
2228
2328
2429
2529
2629
2729
2829
2929
3029
3128

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 32% of days. Sticky, muggy-or-worse air turns up on roughly 24% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1212023279
2232023269
3242023268
4252022267
5252122257
6262122256
7272122255
8272222245
9282222244
10282222244
11292223233
12292223233
13292223223
14302323223
15302323212
16312323212
17312324202
18322324192
19332324182
20342323182
21352323172
22362223162
23382223162
24392223152
25402222152
26412122142
27422122142
28432121142
29432121132
30442021132
31442021141

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 hours at the start of May to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over May. Sunrise moves from 7:16 AM to 7:32 AM, and sunset from 6:16 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:166:16
211.07:166:15
311.07:176:14
410.97:176:14
510.97:186:13
610.97:186:12
710.97:196:11
810.97:206:11
910.87:206:10
1010.87:216:09
1110.87:216:09
1210.87:226:08
1310.77:226:07
1410.77:236:07
1510.77:236:06
1610.77:246:06
1710.77:256:05
1810.77:256:05
1910.67:266:04
2010.67:266:04
2110.67:276:03
2210.67:276:03
2310.67:286:02
2410.67:286:02
2510.57:296:02
2610.57:306:01
2710.57:306:01
2810.57:316:01
2910.57:316:00
3010.57:326:00
3110.57:326:00

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.15 kWh/m².

For context, solar energy here swings from a low near 2.66 kWh/m² to a high of 6.75 kWh/m² in December across the year — May's 3.15 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.3Moderate
123.3Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.0Moderate
232.9Moderate
242.9Moderate
252.9Moderate
262.9Moderate
272.9Moderate
282.8Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in May

Is May a good time to visit San Juan Bautista?

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

7.1
Sightseeing
2nd-best month of the year
5.8
Beach & pool
10th-best month of the year

May is one of the better times to visit San Juan Bautista for general sightseeing.

What to pack for San Juan Bautista in May

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

In May, San Juan Bautista sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in San Juan Bautista in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Juan Bautista peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateVery highExtremeJan 18UV 14Jun 20UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May6High
Jun4Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct7Very high
Nov12Extreme
Dec13Extreme

Air quality in San Juan Bautista 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 Juan Bautista is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (May, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodSep 1119 µg/m³May 157 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar9Good
Apr8Good
May7Good
Jun8Good
Jul11Good
Aug17Moderate
Sep19Moderate
Oct12Good
Nov9Good
Dec7Good
Location & terrain

Where is San Juan Bautista?

San Juan Bautista sits at 26.7°S, 57.1°W, 103 m above sea level, in Paraguay. The nearest listed city is Caazapá, 93 km away.

CaazapáItuzaingóFormosaPilarVillarricaItáCaacupéItauguá

Topography around San Juan Bautista

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

Within 3 km, the terrain around San Juan Bautista has only modest variations in elevation — a maximum elevation change of 62 m around an average of 108 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 119 m; within 80 km, significant variations in elevation — a maximum elevation change of 491 m.

The land around San Juan Bautista is covered by grassland (55%) and trees (39%) within 3 km, grassland (71%) within 16 km, and grassland (58%) within 80 km.

3 km
62 m
16 km
119 m
80 km
491 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Caazapá 93 km · Ituzaingó 111 km · Formosa 116 km · Pilar 118 km · Villarrica 124 km · Itá 132 km · Caacupé 143 km · Itauguá 144 km

Paraguay travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / N
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$7,027
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
64%
of population, 2024
Homicide rate
6.8
per 100k, 2023
Road deaths
22
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 531
Religion
Roman Catholic 80%Protestant 7%Believer 6%other 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 San Juan Bautista (-26.6703°, -57.1407°, elevation 103 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).