Los Álamos weather in January

In January, Los Álamos sees average daytime highs of 18°C and overnight lows near 12°C, with 15 mm of rain across 2.9 wet days and about 14.3 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 72% of the time in January, and the air most often feels dry.

Daylight stretches from about 14 h 36 min at the start of January to 13 h 54 min by month's end. Set against the rest of the year, January is Los Álamos's 1st-clearest and 1st-windiest month. For the whole year in context, see Los Álamos's year-round climate.

Daytime high
18°
1st warmest
Overnight low
12°
12th coldest
Rainfall
15 mm
2.9 wet days
Daylight
14 h 18 min
6:53 AM – 9:13 PM
Cloud cover
26%
1st clearest
Wind
18 km/h
1st windiest
Solar energy
8.3 kWh/m²
Travel score
7.5
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 18°C through the month.

A typical January day in Los Álamos reaches about 18°C in the afternoon and slips back to 12°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 20°C. Set against its neighbours, January runs about 2°C warmer than December and on par with February.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11812
21812
31812
41812
51812
61812
71812
81812
91812
101812
111812
121812
131812
141812
151812
161812
171812
181812
191812
201812
211812
221812
231812
241812
251812
261812
271812
281812
291812
301812
311812

Los Álamos weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 12°152.914.37.5
Feb18° / 12°192.713.57.5
Mar17° / 12°335.112.36.6
Apr15° / 10°777.611.14.9
May13° / 17212.4103.5
Jun12° / 25416.49.52.5
Jul11° / 20815.69.72.4
Aug11° / 17414.410.62.6
Sep12° / 9010.111.73.3
Oct13° / 749.3134.0
Nov15° / 10°426145.1
Dec17° / 11°364.614.66.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18020
28119
38119
48020
58020
68119
78119
88119
98119
108218
118218
128218
138317
148317
158416
168515
178515
188515
198614
208713
218713
228713
238713
248713
258713
268713
278713
288614
298614
308614
318614

Chance of precipitation in January

Any precipitation

Los Álamos gets around 15 mm of rain over 2.9 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 10% and peaks near 14% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
214
314
413
513
613
712
812
912
1011
1111
1210
1310
149
159
168
178
187
197
207
217
227
237
248
258
269
279
289
299
309
319

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
18515
28515
38515
48416
58416
68317
78317
88317
98218
108218
118119
128119
138020
147921
157921
167921
177822
187822
197723
207723
217723
227723
237624
247723
257723
267723
277723
287723
297822
307822
317921

Wind in January

Winds average 18 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 18 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 14 h 36 min at the start of January to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over January. Sunrise moves from 6:40 AM to 7:09 AM, and sunset from 9:14 PM to 9:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.66:409:14
214.56:419:14
314.56:429:14
414.56:429:14
514.56:439:14
614.56:449:14
714.56:459:14
814.56:469:14
914.56:479:14
1014.46:489:14
1114.46:489:14
1214.46:499:14
1314.46:509:14
1414.46:519:14
1514.46:529:13
1614.36:539:13
1714.36:549:13
1814.36:559:12
1914.36:569:12
2014.26:579:12
2114.26:589:11
2214.26:599:11
2314.27:009:10
2414.17:019:10
2514.17:029:09
2614.17:039:09
2714.17:049:08
2814.07:069:08
2914.07:079:07
3014.07:089:06
3113.97:099:06

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 8.3 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 8.3 kWh/m² in January across the year — January's 8.3 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.4Intense
28.4Intense
38.4Intense
48.4Intense
58.4Intense
68.4Intense
78.4Intense
88.4Intense
98.4Intense
108.4Intense
118.4Intense
128.4Intense
138.4Intense
148.4Intense
158.3Intense
168.3Intense
178.3Intense
188.3Intense
198.3Intense
208.3Intense
218.2Intense
228.2Intense
238.2Intense
248.1Intense
258.1Intense
268.1Intense
278.0Intense
288.0Intense
297.9Intense
307.9Intense
317.8Intense
Planning a trip in January

Hazard calendar for Los Álamos

In seasonPeak

None of Los Álamos's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Los Álamos's rainy season runs May–August, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Los Álamos?

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

7.5
Sightseeing
1st-best month of the year
2.5
Beach & pool
2nd-best month of the year

January is one of the better times to visit Los Álamos for general sightseeing.

What to pack for Los Álamos in January

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

In January, Los Álamos sees daytime highs around 18°C and nights near 12°C. Pack sun protection.

sun protection

Sea temperature near Los Álamos in January

The nearest coast averages about 15°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 15 km away) is warmest in January at about 15°C and coldest in August near 12°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

10°12°14°16°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan15Bracing
Feb15Bracing
Mar15Bracing
Apr14Bracing
May13Bracing
Jun13Bracing
Jul12Bracing
Aug12Bracing
Sep12Bracing
Oct12Bracing
Nov13Bracing
Dec14Bracing

UV index in Los Álamos in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Los Álamos peaks around December 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeDec 23UV 12Jun 16UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar8Very high
Apr5Moderate
May2Moderate
Jun2Low
Jul2Moderate
Aug3Moderate
Sep5Moderate
Oct8Very high
Nov10Very high
Dec12Extreme
Location & terrain

Where is Los Álamos?

Los Álamos sits at 37.6°S, 73.5°W, 178 m above sea level, in Chile. The nearest listed city is Lebu, 17 km away.

Topography around Los Álamos

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

Within 3 km, the terrain around Los Álamos has only modest variations in elevation — a maximum elevation change of 160 m around an average of 166 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 821 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,511 m.

The land around Los Álamos is covered by trees (82%) within 3 km, trees (85%) within 16 km, and trees (49%) and water (39%) within 80 km.

3 km
160 m
16 km
821 m
80 km
1,511 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Lebu 17 km · Curanilahue 20 km · Cañete 20 km · Arauco 44 km · Lota 66 km · Angol 68 km · Nacimiento 71 km · Coronel 72 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

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 Los Álamos (-37.628°, -73.4601°, elevation 178 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).