Tacna in Winter
In winter (June, July and August), Tacna sees average daytime highs around 20°C and overnight lows near 14°C, with 12 mm of rain over about 1 wet days across the season. It is the coldest season of the year and the 3rd-wettest season.
Across winter, daytime highs hold fairly steady around 20°C. The sky is clear or mostly clear about 33% of the time across winter, and the air most often feels dry.
Winter is Tacna's 3rd-best season to visit on our travel score. For the whole year in context, see Tacna's year-round climate.
- Avg daytime high
- 20°C
- coldest season of the year
- Avg overnight low
- 14°C
- Rainfall
- 12 mm
- 1 wet days
- Avg wind
- 6 km/h
- Travel score
- 7.8
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Tacna in Winter
Across winter, daytime highs hold fairly steady around 20°C.
A typical winter day in Tacna reaches about 20°C and drops to 14°C overnight. The warmest of the three months is June, the coolest July.
Tacna weather by month
How the three winter months (June, July and August) 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 | 25° / 17° | 23 | 6.5 | 13 | 7.0 |
| Feb | 25° / 18° | 23 | 6.9 | 12.6 | 6.8 |
| Mar | 25° / 17° | 14 | 4.1 | 12.1 | 7.6 |
| Apr | 24° / 16° | 2 | 0.4 | 11.6 | 8.6 |
| May | 22° / 15° | 4 | 0.4 | 11.2 | 8.2 |
| Jun | 21° / 14° | 5 | 0.4 | 10.9 | 7.8 |
| Jul | 20° / 13° | 4 | 0.5 | 11 | 7.7 |
| Aug | 20° / 14° | 4 | 0.5 | 11.4 | 7.9 |
| Sep | 21° / 14° | 2 | 0.2 | 11.9 | 8.1 |
| Oct | 22° / 15° | 1 | 0 | 12.4 | 8.2 |
| Nov | 23° / 15° | 1 | 0.2 | 12.8 | 8.5 |
| Dec | 24° / 16° | 6 | 1.4 | 13.1 | 8.1 |
Cloud cover in Winter
The sky is clear or mostly clear about 33% of the time across winter.
Chance of precipitation in Winter
Tacna gets around 12 mm of rain over 1 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 6 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 hours in early June to 11 h 36 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.7 kWh/m².
Is winter a good time to visit Tacna?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is one of the better times to visit Tacna for general sightseeing.
What to pack for Tacna in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Tacna sees daytime highs around 20°C and nights near 14°C. Worth packing: sun protection.
Sea temperature near Tacna in Winter
The nearest coast averages about 18°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 41 km away) is warmest in February at about 23°C and coldest in August near 17°C.
It's comfortable for a long swim from Nov 26 to May 7 — about 5.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 22 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 17 | 18 | 20 | 21 |
| Comfort | Refreshing | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 22 | Refreshing |
| Feb | 23 | Refreshing |
| Mar | 22 | Refreshing |
| Apr | 21 | Refreshing |
| May | 20 | Cool |
| Jun | 19 | Cool |
| Jul | 18 | Cool |
| Aug | 17 | Cool |
| Sep | 17 | Cool |
| Oct | 18 | Cool |
| Nov | 20 | Cool |
| Dec | 21 | Refreshing |
UV index in Tacna in Winter
Clear-sky midday UV across winter averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tacna peaks around February 9 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 7 (very 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) | 16 | 16 | 13 | 12 | 9 | 7 | 7 | 10 | 12 | 14 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 16 | Extreme |
| Feb | 16 | Extreme |
| Mar | 13 | Extreme |
| Apr | 12 | Extreme |
| May | 9 | Very high |
| Jun | 7 | Very high |
| Jul | 7 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 14 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
Where is Tacna?
Tacna sits at 18.0°S, 70.3°W, 567 m above sea level, in Peru. The nearest listed city is Arica, 51 km away.
Topography around Tacna
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tacna.
Within 3 km, the terrain around Tacna has significant variations in elevation — a maximum elevation change of 309 m around an average of 582 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,180 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,938 m.
The land around Tacna is covered by artificial surfaces (54%) and bare terrain (35%) within 3 km, bare terrain (90%) within 16 km, and bare terrain (71%) within 80 km.
Peru travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 220 V · 60 Hz
- Prices
- ≈ 51% of US
- price level, 2025
- GDP per capita
- $9,684
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 49%
- of population, 2024
- Homicide rate
- 8.6
- per 100k, 2021
- Road deaths
- 13.6
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 519
- 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 Tacna (-18.0146°, -70.2536°, elevation 567 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.