Rengo weather in January

In January, Rengo sees average daytime highs of 24°C and overnight lows near 11°C, with 10 mm of rain across 2.2 wet days and about 14 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 87% of the time in January, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of January to 13 h 42 min by month's end. Set against the rest of the year, January is Rengo's 1st-clearest and 1st-windiest month. For the whole year in context, see Rengo's year-round climate.

Daytime high
24°
1st warmest
Overnight low
11°
12th coldest
Rainfall
10 mm
2.2 wet days
Daylight
14 h 06 min
6:51 AM – 8:55 PM
Cloud cover
15%
1st clearest
Wind
5 km/h
1st windiest
Solar energy
8.84 kWh/m²
Travel score
9.2
out of 10

Rengo is municipality in Chile.

Air quality
Elevated
PM2.5 23.8 µg/m³ · 2019

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 24°C through the month.

A typical January day in Rengo reaches about 24°C in the afternoon and slips back to 11°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 27°C. Set against its neighbours, January runs about 2°C warmer than December and on par with February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12411
22411
32411
42411
52411
62411
72411
82411
92411
102411
112411
122411
132411
142411
152411
162412
172412
182412
192412
202412
212412
222412
232412
242412
252412
262411
272411
282411
292411
302411
312411

How January really feels in Rengo

Once humidity and wind are folded in, January 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

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

Rengo 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 daysSnow daysDaylight (hours)Travel score
Jan24° / 11°102.20149.2
Feb24° / 11°112.3013.39.1
Mar22° / 142.4012.38.7
Apr18° / 574.70.411.27.0
May15° / 12782.110.24.7
Jun11° / 20910.65.69.72.6
Jul10° / -0°1479.769.92.5
Aug12° / 1238.75.210.73.3
Sep14° / 848.92.911.84.3
Oct17° / 598.71.712.95.8
Nov20° / 356.90.313.87.2
Dec23° / 193.80.114.38.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 87% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of January, with mostly cloudy or overcast conditions the remaining 7%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1928
2928
3928
4928
5928
6928
7928
8928
9928
10928
11928
12928
13928
14928
15928
16928
17928
18937
19937
20937
21937
22937
23937
24937
25937
26937
27946
28946
29946
30946
31946

Chance of precipitation in January

Any precipitation

Rengo gets around 10 mm of rain over 2.2 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 7% and peaks near 9% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
19
29
39
48
58
68
78
88
98
108
118
128
138
148
158
168
178
188
197
207
217
227
237
247
256
266
276
286
295
305
315

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 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1955
2955
3955
4955
5955
6955
7946
8946
9937
10937
11937
12928
13928
14928
15919
16919
179010
189010
199010
209010
219010
22919
23919
24919
25919
26919
27928
28928
29928
30928
31937

Wind in January

Winds average 5 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 14 h 18 min at the start of January to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over January. Sunrise moves from 6:39 AM to 7:05 AM, and sunset from 8:55 PM to 8:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.36:398:55
214.36:398:55
314.26:408:55
414.26:418:55
514.26:428:55
614.26:428:55
714.26:438:55
814.26:448:55
914.26:458:55
1014.26:468:55
1114.16:468:55
1214.16:478:55
1314.16:488:55
1414.16:498:55
1514.16:508:55
1614.16:518:55
1714.06:528:54
1814.06:538:54
1914.06:548:54
2014.06:548:54
2114.06:558:53
2213.96:568:53
2313.96:578:53
2413.96:588:52
2513.96:598:52
2613.97:008:51
2713.87:018:51
2813.87:028:50
2913.87:038:50
3013.87:048:49
3113.77:058:49

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 8.84 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.19 kWh/m² to a high of 8.84 kWh/m² in January across the year — January's 8.84 kWh/m² sits near the top of that range.

0246810151015202531
Solar energy (kWh/m²)Level
19.0Intense
29.0Intense
39.0Intense
49.0Intense
59.0Intense
69.0Intense
79.0Intense
89.0Intense
99.0Intense
108.9Intense
118.9Intense
128.9Intense
138.9Intense
148.9Intense
158.8Intense
168.8Intense
178.8Intense
188.8Intense
198.8Intense
208.8Intense
218.7Intense
228.7Intense
238.7Intense
248.7Intense
258.6Intense
268.6Intense
278.6Intense
288.6Intense
298.5Intense
308.5Intense
318.5Intense
Planning a trip in January

Hazard calendar for Rengo

In seasonPeak

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

Rengo'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 Rengo?

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

9.2
Sightseeing
1st-best month of the year
7.7
Beach & pool
1st-best month of the year

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

What to pack for Rengo in January

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

In January, Rengo sees daytime highs around 24°C and nights near 11°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Rengo in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rengo peaks around January 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near May 24 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateVery highExtremeJan 17UV 13May 24UV 3
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar10Very high
Apr5High
May3Moderate
Jun3Moderate
Jul3Moderate
Aug3Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in Rengo in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Rengo is worst in July — around 32 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 16 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Rengo's WHO annual average of 23.8 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1832 µg/m³Dec 1216 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb17Moderate
Mar17Moderate
Apr23Moderate
May31Moderate
Jun31Moderate
Jul32Moderate
Aug31Moderate
Sep29Moderate
Oct22Moderate
Nov17Moderate
Dec16Moderate
Location & terrain

Where is Rengo?

Rengo sits at 34.4°S, 70.9°W, 326 m above sea level, in Chile. The nearest listed city is San Vicente de Tagua Tagua, 20 km away.

Topography around Rengo

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

Within 3 km, the terrain around Rengo has only modest variations in elevation — a maximum elevation change of 96 m around an average of 320 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,632 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,128 m.

The land around Rengo is covered by cropland (41%), trees (24%) and artificial surfaces (22%) within 3 km, cropland (34%), trees (28%) and shrubs (23%) within 16 km, and trees (23%), bare terrain (22%) and grassland (20%) within 80 km.

3 km
96 m
16 km
1,632 m
80 km
5,128 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainsnow and icewater
January weather nearby: San Vicente de Tagua Tagua 20 km · San Vicente 21 km · Rancagua 29 km · Machalí 32 km · Chimbarongo 38 km · Graneros 39 km · Santa Cruz 53 km · Paine 67 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 Rengo (-34.4064°, -70.8583°, elevation 326 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).