Rivera weather in January

In January, Rivera sees average daytime highs of 30°C and overnight lows near 19°C, with 134 mm of rain across 10.6 wet days and about 13.8 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 43% of the time in January, and the air most often feels muggy.

Daylight stretches from about 14 hours at the start of January to 13 h 30 min by month's end. Set against the rest of the year, January is Rivera's 3rd-clearest and 8th-windiest month. For the whole year in context, see Rivera's year-round climate.

Daytime high
30°
1st warmest
Overnight low
19°
12th coldest
Rainfall
134 mm
10.6 wet days
Daylight
13 h 48 min
6:57 AM – 8:45 PM
Cloud cover
50%
3rd clearest
Wind
12 km/h
8th windiest
Solar energy
6.77 kWh/m²
Travel score
5.0
out of 10

Rivera is city in Uruguay.

Density
2,125/km²
people per km²
Founded
1867

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 30°C through the month.

A typical January day in Rivera reaches about 30°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°C. Set against its neighbours, January runs about 1°C warmer than December and about 1°C warmer than February.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13019
23019
33019
43019
53019
63019
73019
83019
93019
103019
113019
123019
133019
143019
153019
163019
173019
183019
193019
203019
213019
223019
233019
243019
253019
263019
273019
283019
293019
303019
313019

Rivera weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 19°13410.613.85.0
Feb29° / 19°12610.413.15.4
Mar28° / 17°1079.212.26.4
Apr24° / 14°143911.37.1
May20° / 11°1108.310.56.5
Jun18° / 1248.7105.9
Jul17° / 1088.110.25.8
Aug19° / 1058.310.96.5
Sep21° / 11°1319.511.86.5
Oct23° / 13°1611112.86.7
Nov26° / 15°1188.313.67.0
Dec29° / 17°1179.6145.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35842
45842
55743
65842
75842
85941
95941
105842
115941
125941
135941
145941
155941
165941
175941
185941
195941
205941
215941
225941
235941
245842
255842
265743
275743
285644
295644
305545
315545

Chance of precipitation in January

Any precipitation

Rivera gets around 134 mm of rain over 10.6 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 40% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
132
232
332
433
533
633
733
834
934
1034
1134
1234
1334
1434
1534
1633
1733
1833
1933
2033
2133
2234
2334
2435
2536
2637
2737
2838
2939
3039
3140

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 49% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11018252918
2918252918
3918252918
4918253018
5918253018
6917253018
7917243118
8917253118
9917253118
101017253118
111016253217
121016253217
131016253217
141016263316
15916263316
16916263316
17916263316
18916263316
19916263316
20917263316
21917263316
22916263316
23816263217
24816263217
25716263218
26716263219
27715263219
28615263220
29615263221
30615263221
31615263122

Wind in January

Winds average 12 km/h in January.

Across January, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 14 hours at the start of January to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over January. Sunrise moves from 6:46 AM to 7:10 AM, and sunset from 8:45 PM to 8:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.06:468:45
214.06:478:45
314.06:488:45
413.96:488:45
513.96:498:45
613.96:508:45
713.96:508:46
813.96:518:46
913.96:528:46
1013.96:538:46
1113.96:538:46
1213.96:548:46
1313.86:558:46
1413.86:568:46
1513.86:578:46
1613.86:578:45
1713.86:588:45
1813.86:598:45
1913.77:008:45
2013.77:018:45
2113.77:028:45
2213.77:038:44
2313.77:038:44
2413.77:048:44
2513.67:058:43
2613.67:068:43
2713.67:078:43
2813.67:088:42
2913.57:098:42
3013.57:108:41
3113.57:108:41

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.77 kWh/m².

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 7.02 kWh/m² in December across the year — January's 6.77 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.9Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
86.9Intense
96.9Intense
106.9Intense
116.9Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.7Intense
206.7Intense
216.7Intense
226.7Intense
236.6Intense
246.6Intense
256.6Intense
266.5Intense
276.5Intense
286.5Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in January

Is January a good time to visit Rivera?

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

5.0
Sightseeing
12th-best month of the year
6.9
Beach & pool
3rd-best month of the year

January is a reasonable time to visit Rivera for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Rivera in January

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

In January, Rivera sees daytime highs around 30°C and nights near 19°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

UV index in Rivera 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 Rivera peaks around January 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 18UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr7Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep7Very high
Oct7Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Rivera?

Rivera sits at 30.9°S, 55.6°W, 194 m above sea level, in Uruguay. The nearest listed city is Sant'Ana do Livramento, 2.0 km away.

Dom PedritoRosário do SulTacuarembóQuaraíArtigasSão Gabriel

Topography around Rivera

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

Within 3 km, the terrain around Rivera has only modest variations in elevation — a maximum elevation change of 88 m around an average of 207 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 239 m; within 80 km, significant variations in elevation — a maximum elevation change of 409 m.

The land around Rivera is covered by artificial surfaces (50%), trees (25%) and grassland (25%) within 3 km, grassland (57%) and trees (36%) within 16 km, and grassland (69%) within 80 km.

3 km
88 m
16 km
239 m
80 km
409 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Sant'Ana do Livramento 2.0 km · Dom Pedrito 84 km · Rosário do Sul 94 km · Tacuarembó 99 km · Quaraí 104 km · Artigas 104 km · Alegrete 127 km · São Gabriel 134 km

Uruguay travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / I / L
230 V · 50 Hz
Prices
≈ 66% of US
price level, 2025
GDP per capita
$25,216
2025
Happiness
6.6 / 10
World Happiness, 2025
Homicide rate
11.2
per 100k, 2023
Road deaths
14.8
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 542
Religion
none 47%Roman Catholic 37%Protestant 15%atheist 10%

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 Rivera (-30.9053°, -55.5508°, elevation 194 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).