La Unión weather in October

In October, La Unión sees average daytime highs of 26°C and overnight lows near 18°C, with 2 mm of rain across 0.8 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 39% of the time in October, and the air most often feels comfortable.

Daylight stretches from about 12 hours at the start of October to 12 h 12 min by month's end. Set against the rest of the year, October is La Unión's 6th-clearest and 2nd-windiest month. For the whole year in context, see La Unión's year-round climate.

Daytime high
26°
9th warmest
Overnight low
18°
3rd coldest
Rainfall
2 mm
0.8 wet days
Daylight
12 h 06 min
6:04 AM – 6:12 PM
Cloud cover
52%
6th clearest
Wind
15 km/h
2nd windiest
Solar energy
6.62 kWh/m²
Travel score
8.1
out of 10

La Unión is city in Piura, Peru.

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical October day in La Unión reaches about 26°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 25°C and 28°C. Set against its neighbours, October runs about 1°C warmer than September and about 1°C cooler than November.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12617
22617
32617
42617
52617
62617
72618
82618
92618
102618
112618
122618
132618
142618
152618
162618
172618
182618
192618
202718
212718
222718
232718
242718
252718
262718
272718
282718
292718
302718
312718

How October really feels in La Unión

Once humidity and wind are folded in, October 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

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

La Unión weather by month

How October compares with the rest of the year at a glance. October is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°232.712.35.5
Feb31° / 23°375.612.24.7
Mar31° / 23°586.9124.5
Apr30° / 22°213.611.95.6
May29° / 20°31.111.87.1
Jun26° / 19°10.311.78.4
Jul25° / 18°00.111.78.8
Aug25° / 17°00.111.89.0
Sep26° / 17°10.3128.5
Oct26° / 18°20.812.18.1
Nov27° / 18°41.212.27.7
Dec29° / 20°102.612.36.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 22% of October, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26436
36436
46436
56436
66337
76436
86436
96337
106337
116337
126337
136238
146337
156238
166238
176139
186139
196139
206040
216040
226040
235941
245941
255743
265743
275644
285644
295545
305446
315446

Chance of precipitation in October

Any precipitation

La Unión gets around 2 mm of rain over 0.8 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 3% and peaks near 3% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
12
22
32
42
52
62
72
82
92
102
112
122
133
143
153
163
173
183
193
203
213
223
233
243
253
263
273
283
293
303
313

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the comfortable band about 50% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
162353
262353
362362
462362
562362
661372
760382
860382
959392
1058402
1157412
1256431
1355441
1454451
1553461
1651481
1750491
1848511
1947521
2046531
2144551
2243552
2342562
2441572
2540582
2639592
2738602
2838593
2937603
3036613
3135623

Wind in October

Winds average 15 km/h in October.

Across October, daily wind ranges from about 15 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in October

DaylightNight

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

Days grow by about 12 minutes over October. Sunrise moves from 6:11 AM to 6:01 AM, and sunset from 6:13 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:116:13
212.16:106:13
312.16:106:13
412.16:096:13
512.16:096:13
612.16:086:13
712.16:086:12
812.16:076:12
912.16:076:12
1012.16:076:12
1112.16:066:12
1212.16:066:12
1312.16:056:12
1412.16:056:12
1512.16:056:12
1612.16:046:12
1712.16:046:12
1812.16:046:12
1912.16:036:12
2012.16:036:12
2112.16:036:12
2212.16:036:12
2312.26:026:12
2412.26:026:12
2512.26:026:12
2612.26:026:12
2712.26:016:12
2812.26:016:12
2912.26:016:12
3012.26:016:12
3112.26:016:12

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.62 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 5.3 kWh/m² to a high of 6.62 kWh/m² in October across the year — October's 6.62 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.6Intense
246.6Intense
256.6Intense
266.6Intense
276.6Intense
286.6Intense
296.6Intense
306.6Intense
316.6Intense
Planning a trip in October

Is October a good time to visit La Unión?

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

8.1
Sightseeing
5th-best month of the year
7.9
Beach & pool
8th-best month of the year

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

What to pack for La Unión in October

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

In October, La Unión sees daytime highs around 26°C and nights near 18°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near La Unión in October

The nearest coast averages about 18°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 29 km away) is warmest in February at about 23°C and coldest in September near 18°C.

It's comfortable for a long swim from Dec 25 to May 15 — about 4.7 months when the water holds above 20°C.

16°18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb23Refreshing
Mar23Refreshing
Apr21Refreshing
May20Refreshing
Jun19Cool
Jul18Cool
Aug18Cool
Sep18Cool
Oct18Cool
Nov19Cool
Dec20Cool

UV index in La Unión in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in La Unión peaks around February 19 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeFeb 19UV 16Jun 22UV 10
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar16Extreme
Apr13Extreme
May12Extreme
Jun10Very high
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is La Unión?

La Unión sits at 5.4°S, 80.7°W, 15 m above sea level, in Peru. The nearest listed city is Catacaos, 16 km away.

Topography around La Unión

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of La Unión.

Within 3 km, the terrain around La Unión has only modest variations in elevation — a maximum elevation change of 25 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 76 m; within 80 km, significant variations in elevation — a maximum elevation change of 588 m.

The land around La Unión is covered by cropland (57%) within 3 km, bare terrain (50%) and cropland (33%) within 16 km, and bare terrain (47%) and water (24%) within 80 km.

3 km
25 m
16 km
76 m
80 km
588 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Catacaos 16 km · Sechura 19 km · San Martin 25 km · Piura 26 km · Paita 54 km · Sullana 56 km · Marcavelica 58 km · Querecotillo 64 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 La Unión (-5.4023°, -80.7422°, elevation 15 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).