Tacna weather in January

In January, Tacna sees average daytime highs of 25°C and overnight lows near 17°C, with 23 mm of rain across 6.5 wet days and about 13 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 11% of the time in January, and the air most often feels comfortable.

Daylight stretches from about 13 h 06 min at the start of January to 12 h 48 min by month's end. Set against the rest of the year, January is Tacna's 11th-clearest and 2nd-windiest month. For the whole year in context, see Tacna's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
17°
11th coldest
Rainfall
23 mm
6.5 wet days
Daylight
13 hours
5:21 AM – 6:19 PM
Cloud cover
74%
11th clearest
Wind
8 km/h
2nd windiest
Solar energy
7 kWh/m²
Travel score
7.0
out of 10

Tacna is city of Peru, capital of Tacna region.

Founded
1875

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical January day in Tacna reaches about 25°C in the afternoon and slips back to 17°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 26°C. Set against its neighbours, January runs about 1°C warmer than December and on par with February.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12517
22517
32517
42517
52517
62517
72517
82517
92517
102517
112517
122517
132517
142517
152517
162517
172517
182518
192518
202518
212518
222518
232518
242518
252518
262518
272518
282518
292518
302518
312518

Tacna weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 17°236.5137.0
Feb25° / 18°236.912.66.8
Mar25° / 17°144.112.17.6
Apr24° / 16°20.411.68.6
May22° / 15°40.411.28.2
Jun21° / 14°50.410.97.8
Jul20° / 13°40.5117.7
Aug20° / 14°40.511.47.9
Sep21° / 14°20.211.98.1
Oct22° / 15°1012.48.2
Nov23° / 15°10.212.88.5
Dec24° / 16°61.413.18.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22674
32674
42674
52575
62575
72674
82674
92674
102674
112575
122476
132377
142377
152377
162476
172476
182377
192377
202377
212377
222377
232476
242377
252377
262377
272377
282377
292476
302476
312377

Chance of precipitation in January

Any precipitation

Tacna gets around 23 mm of rain over 6.5 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 21% and peaks near 27% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
112
212
313
413
514
614
715
816
916
1017
1118
1219
1319
1420
1521
1622
1723
1824
1924
2025
2125
2226
2326
2426
2526
2626
2726
2826
2926
3027
3127

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the comfortable band about 68% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11176130
21175140
31075150
4975160
5974170
6973180
7874180
8873190
9872200
10772210
11772210
12671221
13670231
14670231
15570241
16570241
17568252
18469252
19468262
20467263
21466273
22466273
23465283
24464293
25463294
26462304
27462313
28461323
29460333
30459343
31458353

Wind in January

Winds average 8 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 06 min at the start of January to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over January. Sunrise moves from 5:12 AM to 5:30 AM, and sunset from 6:16 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:126:16
213.15:136:16
313.15:136:17
413.15:146:17
513.05:156:17
613.05:156:18
713.05:166:18
813.05:166:18
913.05:176:18
1013.05:186:19
1113.05:186:19
1213.05:196:19
1313.05:196:19
1413.05:206:19
1513.05:216:19
1613.05:216:19
1713.05:226:20
1813.05:226:20
1912.95:236:20
2012.95:246:20
2112.95:246:20
2212.95:256:20
2312.95:256:20
2412.95:266:20
2512.95:276:20
2612.95:276:19
2712.95:286:19
2812.85:286:19
2912.85:296:19
3012.85:296:19
3112.85:306:19

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 7 kWh/m².

For context, solar energy here swings from a low near 4.34 kWh/m² to a high of 7.94 kWh/m² in November across the year — January's 7 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.2Intense
57.2Intense
67.2Intense
77.2Intense
87.2Intense
97.2Intense
107.1Intense
117.1Intense
127.1Intense
137.1Intense
147.0Intense
157.0Intense
167.0Intense
177.0Intense
187.0Intense
197.0Intense
206.9Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
256.9Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
316.8Intense
Planning a trip in January

Is January a good time to visit Tacna?

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

7.0
Sightseeing
11th-best month of the year
6.4
Beach & pool
5th-best month of the year

January is one of the better times to visit Tacna for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Tacna in January

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

In January, Tacna sees daytime highs around 25°C and nights near 17°C. Pack sun protection. Worth having: light clothes. About 7 days see rain.

sun protectionlight clothes

Sea temperature near Tacna in January

The nearest coast averages about 22°C in January — 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.

16°18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb23Refreshing
Mar22Refreshing
Apr21Refreshing
May20Cool
Jun19Cool
Jul18Cool
Aug17Cool
Sep17Cool
Oct18Cool
Nov20Cool
Dec21Refreshing

UV index in Tacna in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 16 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 9UV 16Jul 10UV 7
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar13Extreme
Apr12Extreme
May9Very high
Jun7Very high
Jul7Very high
Aug10Very high
Sep12Extreme
Oct14Extreme
Nov14Extreme
Dec14Extreme
Location & terrain

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.

San AntonioMoqueguaIloMollendoCiudad SateliteJacobo HunterIlave

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.

3 km
309 m
16 km
1,180 m
80 km
5,938 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Arica 51 km · San Antonio 114 km · Moquegua 116 km · Ilo 123 km · Mollendo 217 km · Ciudad Satelite 222 km · Jacobo Hunter 223 km · Ilave 224 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
Catholic 76%Evangelical Christian 16%no religion 5%other religions 3%

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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).