Tarija in Summer
In summer (December, January and February), Tarija sees average daytime highs around 20°C and overnight lows near 11°C, with 604 mm of rain over about 71 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 20°C. The sky is clear or mostly clear about 5% of the time across summer, and the air most often feels dry.
Summer is Tarija's weakest season of the year to visit on our travel score. For the whole year in context, see Tarija's year-round climate.
- Avg daytime high
- 20°C
- 2nd-warmest season
- Avg overnight low
- 11°C
- Rainfall
- 604 mm
- 71 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.1
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Tarija in Summer
Across summer, daytime highs hold fairly steady around 20°C.
A typical summer day in Tarija reaches about 20°C and drops to 11°C overnight. The warmest of the three months is December, the coolest February.
How summer really feels in Tarija
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Tarija 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 | 20° / 11° | 220 | 24.9 | 13.2 | 4.0 |
| Feb | 20° / 11° | 190 | 21.8 | 12.7 | 4.1 |
| Mar | 20° / 10° | 163 | 21.8 | 12.2 | 4.5 |
| Apr | 19° / 9° | 72 | 13.8 | 11.5 | 5.5 |
| May | 19° / 6° | 24 | 6.9 | 11 | 6.6 |
| Jun | 19° / 3° | 9 | 3.2 | 10.7 | 7.3 |
| Jul | 18° / 2° | 9 | 2.7 | 10.8 | 7.4 |
| Aug | 19° / 4° | 15 | 4.5 | 11.3 | 7.4 |
| Sep | 20° / 6° | 34 | 8.4 | 11.9 | 6.7 |
| Oct | 21° / 9° | 86 | 17.3 | 12.5 | 5.3 |
| Nov | 20° / 10° | 130 | 20.5 | 13 | 4.6 |
| Dec | 21° / 11° | 194 | 24.5 | 13.3 | 4.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 5% of the time across summer.
Chance of precipitation in Summer
Tarija gets around 604 mm of rain over 71 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 12 min in early December to 12 h 30 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 5.9 kWh/m².
Hazard calendar for Tarija
In summer, Tarija overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Tarija's monsoon runs November–March, when most of the year's rain falls.
Is summer a good time to visit Tarija?
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 reasonable time to visit Tarija for sightseeing.
What to pack for Tarija in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Tarija sees daytime highs around 20°C and nights near 11°C. Pack rain gear and sun protection. About 71 days see rain.
UV index in Tarija in Summer
Clear-sky midday UV across summer averages around 17 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tarija peaks around January 18 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 7 (high).
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) | 17 | 17 | 15 | 12 | 9 | 7 | 7 | 10 | 12 | 15 | 15 | 17 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 17 | Extreme |
| Feb | 17 | Extreme |
| Mar | 15 | Extreme |
| Apr | 12 | Extreme |
| May | 9 | Very high |
| Jun | 7 | Very high |
| Jul | 7 | High |
| Aug | 10 | Extreme |
| Sep | 12 | Extreme |
| Oct | 15 | Extreme |
| Nov | 15 | Extreme |
| Dec | 17 | Extreme |
Where is Tarija?
Tarija sits at 21.5°S, 64.7°W, 1,870 m above sea level, in Bolivia. The nearest listed city is Tupiza, 103 km away.
Topography around Tarija
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tarija.
Within 3 km, the terrain around Tarija has only modest variations in elevation — a maximum elevation change of 108 m around an average of 1,886 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,129 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,049 m.
The land around Tarija is covered by artificial surfaces (60%) within 3 km, grassland (56%) within 16 km, and grassland (49%) and trees (33%) 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 Tarija (-21.5355°, -64.7296°, elevation 1,870 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.