San Ignacio de Velasco in Summer
In summer (December, January and February), San Ignacio de Velasco sees average daytime highs around 30°C and overnight lows near 22°C, with 494 mm of rain over about 64 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 7% of the time across summer, and the air most often feels oppressive.
Summer is San Ignacio de Velasco's weakest season of the year to visit on our travel score. For the whole year in context, see San Ignacio de Velasco's year-round climate.
- Avg daytime high
- 30°C
- 2nd-warmest season
- Avg overnight low
- 22°C
- Rainfall
- 494 mm
- 64 wet days
- Avg wind
- 9 km/h
- Travel score
- 3.5
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in San Ignacio de Velasco in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in San Ignacio de Velasco reaches about 30°C and drops to 22°C overnight. The warmest of the three months is December, the coolest February.
How summer really feels in San Ignacio de Velasco
Once humidity and wind are folded in, summer brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
San Ignacio de Velasco weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 22° | 169 | 22.4 | 12.9 | 3.5 |
| Feb | 29° / 22° | 174 | 21.5 | 12.6 | 3.5 |
| Mar | 29° / 21° | 147 | 20.1 | 12.1 | 3.9 |
| Apr | 29° / 20° | 69 | 12.2 | 11.6 | 5.2 |
| May | 27° / 18° | 43 | 7.9 | 11.2 | 6.8 |
| Jun | 27° / 17° | 23 | 3.9 | 11 | 7.6 |
| Jul | 28° / 16° | 18 | 2.9 | 11.1 | 7.7 |
| Aug | 30° / 18° | 21 | 3.3 | 11.5 | 6.0 |
| Sep | 31° / 20° | 47 | 7.1 | 11.9 | 4.7 |
| Oct | 32° / 21° | 86 | 13.4 | 12.4 | 3.8 |
| Nov | 31° / 21° | 120 | 16.1 | 12.8 | 3.9 |
| Dec | 30° / 22° | 151 | 19.9 | 13 | 3.6 |
Cloud cover in Summer
The sky is clear or mostly clear about 7% of the time across summer.
Chance of precipitation in Summer
San Ignacio de Velasco gets around 494 mm of rain over 64 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 9 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 54 min in early December to 12 h 24 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.4 kWh/m².
Hazard calendar for San Ignacio de Velasco
In summer, San Ignacio de Velasco overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
San Ignacio de Velasco's rainy season runs October–March, when most of the year's rain falls.
Is summer a good time to visit San Ignacio de Velasco?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in San Ignacio de Velasco.
What to pack for San Ignacio de Velasco in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, San Ignacio de Velasco sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 64 days see rain.
UV index in San Ignacio de Velasco in Summer
Clear-sky midday UV across summer averages around 15 (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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 16 | 15 | 14 | 11 | 9 | 7 | 8 | 8 | 4 | 11 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Moderate | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 16 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 11 | Extreme |
| May | 9 | Very high |
| Jun | 7 | Very high |
| Jul | 8 | Very high |
| Aug | 8 | Very high |
| Sep | 4 | Moderate |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in San Ignacio de Velasco in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 10 | 9 | 7 | 11 | 20 | 27 | 55 | 91 | 43 | 36 | 15 |
| Level | Moderate | Good | Good | Good | Good | Moderate | Moderate | Poor | Unhealthy | Poor | Poor | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 10 | Good |
| Mar | 9 | Good |
| Apr | 7 | Good |
| May | 11 | Good |
| Jun | 20 | Moderate |
| Jul | 27 | Moderate |
| Aug | 55 | Poor |
| Sep | 91 | Unhealthy |
| Oct | 43 | Poor |
| Nov | 36 | Poor |
| Dec | 15 | Moderate |
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.
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.
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
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.