San Ignacio de Velasco weather in May

In May, San Ignacio de Velasco sees average daytime highs of 27°C and overnight lows near 18°C, with 43 mm of rain across 7.9 wet days and about 11.2 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 26°C by the end. The sky is clear or mostly clear about 32% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 24 min at the start of May to 11 h 06 min by month's end. Set against the rest of the year, May is San Ignacio de Velasco's 5th-clearest and 8th-windiest month. For the whole year in context, see San Ignacio de Velasco's year-round climate.

Daytime high
27°
11th warmest
Overnight low
18°
4th coldest
Rainfall
43 mm
7.9 wet days
Daylight
11 h 12 min
6:23 AM – 5:37 PM
Cloud cover
59%
5th clearest
Wind
10 km/h
8th windiest
Solar energy
3.93 kWh/m²
Travel score
6.8
out of 10

San Ignacio de Velasco is city in Bolivia.

Founded
1748

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 28°C in the first days to 26°C by the end.

A typical May day in San Ignacio de Velasco reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, May runs about 2°C cooler than April and on par with June.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12819
22819
32819
42819
52819
62819
72819
82819
92818
102718
112718
122718
132718
142718
152718
162718
172718
182718
192718
202718
212718
222718
232718
242718
252718
262718
272618
282618
292618
302618
312718

How May really feels in San Ignacio de Velasco

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 Ignacio de Velasco weather by month

How May compares with the rest of the year at a glance. May is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°16922.412.93.5
Feb29° / 22°17421.512.63.5
Mar29° / 21°14720.112.13.9
Apr29° / 20°6912.211.65.2
May27° / 18°437.911.26.8
Jun27° / 17°233.9117.6
Jul28° / 16°182.911.17.7
Aug30° / 18°213.311.56.0
Sep31° / 20°477.111.94.7
Oct32° / 21°8613.412.43.8
Nov31° / 21°12016.112.83.9
Dec30° / 22°15119.9133.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
35149
45050
55050
64951
74951
84951
94852
104951
114951
124951
134951
144951
155050
165149
175149
185149
195149
205149
215149
225149
235149
245248
255149
265248
275248
285347
295446
305446
315545

Chance of precipitation in May

Any precipitation

San Ignacio de Velasco gets around 43 mm of rain over 7.9 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 25% and peaks near 30% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
130
229
329
428
528
627
727
827
927
1026
1126
1226
1326
1426
1525
1625
1725
1825
1925
2025
2124
2224
2324
2423
2523
2623
2722
2821
2921
3020
3119

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 61% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
186113044
297123043
397123041
4108133040
5108133039
6109143037
7109143036
8109153035
91110153034
101110163034
111111163033
121111163032
131111163031
141112163130
151112173129
161112173228
171212173227
181212183326
191212183325
201212193324
211212193423
221312203422
231312203521
241311213519
251311213618
261411213717
271411223716
281411223815
291411223814
301411223913
311411234013

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
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 11 h 24 min at the start of May to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over May. Sunrise moves from 6:18 AM to 6:28 AM, and sunset from 5:44 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:185:44
211.46:195:43
311.46:195:43
411.46:195:42
511.46:205:42
611.46:205:41
711.36:205:41
811.36:205:40
911.36:215:40
1011.36:215:39
1111.36:215:39
1211.36:225:39
1311.36:225:38
1411.36:225:38
1511.26:235:38
1611.26:235:37
1711.26:235:37
1811.26:245:37
1911.26:245:36
2011.26:245:36
2111.26:255:36
2211.26:255:36
2311.26:255:35
2411.26:265:35
2511.26:265:35
2611.16:265:35
2711.16:275:35
2811.16:275:35
2911.16:275:35
3011.16:285:34
3111.16:285:34

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.93 kWh/m².

For context, solar energy here swings from a low near 3.88 kWh/m² to a high of 5.75 kWh/m² in October across the year — May's 3.93 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.2Bright
74.2Bright
84.2Bright
94.1Bright
104.1Bright
114.1Bright
124.0Bright
134.0Bright
144.0Moderate
154.0Moderate
163.9Moderate
173.9Moderate
183.9Moderate
193.9Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.7Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.7Moderate
Planning a trip in May

Hazard calendar for San Ignacio de Velasco

In seasonPeak

None of San Ignacio de Velasco's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

San Ignacio de Velasco's rainy season runs October–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit San Ignacio de Velasco?

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

6.8
Sightseeing
3rd-best month of the year
7.0
Beach & pool
5th-best month of the year

May is a reasonable time to visit San Ignacio de Velasco for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Ignacio de Velasco in May

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

In May, San Ignacio de Velasco sees daytime highs around 27°C and nights near 18°C. Pack light clothes. About 8 days see rain.

light clothes

UV index in San Ignacio de Velasco in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Ignacio de Velasco peaks around January 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 14 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeJan 18UV 16Sep 14UV 5
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul8Very high
Aug8Very high
Sep4Moderate
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in San Ignacio de Velasco 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 Ignacio de Velasco is worst in September — around 91 µg/m³ PM2.5 (unhealthy), about 12.7× the cleanest month (April, 7 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyPoorModerateSep 1586 µg/m³Apr 148 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb10Good
Mar9Good
Apr7Good
May11Good
Jun20Moderate
Jul27Moderate
Aug55Poor
Sep91Unhealthy
Oct43Poor
Nov36Poor
Dec15Moderate
Location & terrain

Where is San Ignacio de Velasco?

San Ignacio de Velasco sits at 16.4°S, 61.0°W, 582 m above sea level, in Bolivia. The nearest listed city is Vila Bela da Santíssima Trindade, 187 km away.

Vila Bela da Santíssima TrindadePontes e LacerdaAscención de GuarayosMonteroWarnesCotocaSanta CruzSão José dos Quatro Marcos

Topography around San Ignacio de Velasco

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

Within 3 km, the terrain around San Ignacio de Velasco has only modest variations in elevation — a maximum elevation change of 96 m around an average of 408 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 270 m; within 80 km, significant variations in elevation — a maximum elevation change of 508 m.

The land around San Ignacio de Velasco is covered by trees (49%) and grassland (21%) within 3 km, trees (73%) and grassland (21%) within 16 km, and trees (79%) within 80 km.

3 km
96 m
16 km
270 m
80 km
508 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Vila Bela da Santíssima Trindade 187 km · Pontes e Lacerda 216 km · Ascención de Guarayos 244 km · Montero 266 km · Warnes 266 km · Cotoca 273 km · Santa Cruz 283 km · São José dos Quatro Marcos 310 km

Bolivia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 40% of US
price level, 2025
GDP per capita
$5,148
2025
Happiness
5.8 / 10
World Happiness, 2025
Homicide rate
4.4
per 100k, 2023
Road deaths
21.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 521
Religion
Roman Catholic 65%Protestant 20%none 6%other 5%

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 Ignacio de Velasco (-16.3777°, -60.9647°, elevation 582 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).