Rio de Janeiro in January
In January, Rio de Janeiro has a daily low of 23.2 °C (73.8 °F), as 1991-2020 model estimates; figures in brackets are converted. There is no data for the daily high: Not published: the city's cell is sea, and a moved cell failed our station test. There is no data for rain: Not published: the model failed our station test in tropical cities.
Last updated : first sourced version.
Best time to visit Rio de Janeiro: January: no data: no daily high to test against our rule. Expect days that shorten by 23 min.
What January is like in Rio de Janeiro
- In late January, samba schools take over the Sambadrome on Marquês de Sapucaí for free test runs. Crews try out the lights and sound before the parades. Source: Riotur (Rio city tourism), checked .
- On 20 January, Saint Sebastian's day, runners line up in Flamengo for the saint's race. The archbishop gives his blessing at the start line. Source: Archdiocese of Rio de Janeiro, checked .
- On Saint Sebastian's day, a procession walks from his basilica to the Metropolitan Cathedral. Stalls at the feast sell pastel, canjica and hot dogs. Source: Riotur (Rio city tourism), checked .
- In January, the blue and white Vila Isabel samba school plays in the street each Wednesday, on Boulevard Vinte e Oito de Setembro. These street rehearsals are free. Source: Riotur (Rio city tourism), checked .
Key figures
Weather in January, 1991-2020 model estimates
- Daily high
- no data
- Daily low
- 23.2 °C (73.8 °F)
- Rain
- no data
- Sunshine
- no data
Model estimate 1991-2020, not a weather station: ERA5-Land model estimates (Copernicus), computed by City by Month for the grid cell nearest the city. Licence: CC BY 4.0. Checked . How we make and test model estimates
Model estimate for the ERA5-Land grid cell at 22.9° S, 43.3° W, 10 km from the city centre point; the city's own cell is sea, so this is the nearest land cell.
How we define and convert these figures
Notes. Daily high: Not published: the city's cell is sea, and a moved cell failed our station test. Rain: Not published: the model failed our station test in tropical cities. Sunshine: Not in our ERA5-Land estimates.
Daylight on 15 January 2026
- Sunrise
- 05:21 local time
- Sunset
- 18:44 local time
- Day length
- 13 h 23 min
Day length 1-31 January: 13 h 31 min to 13 h 08 min, -23 min.
Source: NOAA Solar Calculator equations, checked .
Month by month
Each month: daily high: no data, 1991-2020 model estimates. Rain: no data.
ERA5-Land model estimates 1991-2020, as above, checked .
This month against the year
| Measure | January | Rank |
|---|---|---|
| Daily high | no data | no data |
| Daily low | 23.2 °C | 2nd warmest |
| Rain | no data | no data |
| Sunshine | no data | no data |
| Day length | 13 h 23 min | 2nd longest |
Equal values share a rank. How we rank months
ERA5-Land model estimates 1991-2020, as above, checked .
Day length: NOAA solar equations, checked .
Public holidays this month
| Date | Holiday |
|---|---|
| Thursday | Universal Fraternization Day legis.sigepe.gov.br |
| Tuesday | Feriado de São Sebastião no Município do Rio de Janeiro (Rio de Janeiro city holiday) |
Typed from the official list and re-checked, .
January 2027: no data. No official 2027 list found.
English names are from the holidays library where the official list gives none. How we check holidays
Source: Official public holiday list (tjrj.jus.br), checked ; holidays Python library, checked . Library: holidays 0.105.
Same month in other cities
No daily high for Rio de Janeiro, so it is not compared with other cities.
Sources
- Attribution: Copernicus Climate Change Service (2025): ERA5 Land hourly time-series data from 1950 to present. Copernicus Climate Change Service (C3S) Climate Data Store (CDS). DOI: 10.24381/ee82e357. Accessed on the check date shown. Generated using or contains modified Copernicus Climate Change Service information 2025. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains. Licence: CC BY 4.0. Checked .
- NOAA Solar Calculator equations, computed locally, NOAA Global Monitoring Laboratory (method); City by Month (computation). Attribution: Computed with the NOAA Solar Calculator method (no NOAA endorsement implied). Licence: Method, not data. Checked .
- holidays Python library, run locally. Attribution: holidays library, Vacanza team. Licence: MIT. Checked .
Official sources
- Official public holiday list (tjrj.jus.br). Checked .
Cite this page: City by Month. "Rio de Janeiro in January: weather, daylight, holidays". https://citybymonth.com/cities/brazil/rio-de-janeiro/january/. Last updated 8 November 2026.