Rio de Janeiro in October
In October, Rio de Janeiro has a daily low of 19.8 °C (67.6 °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: October: no data: no daily high to test against our rule. Expect days that grow by 39 min.
What October is like in Rio de Janeiro
- All through October, the Festa da Penha fills the North Zone, with food and drink stalls by the basilica of Nossa Senhora da Penha. Source: Diário do Rio, checked .
- On 15 October, Saint Teresa's day, the district of Santa Teresa turns a year older. Her shrine there has a novena, Masses and a walk in her honor. Source: Riotur (Rio city tourism), checked .
- On 12 October, Christ the Redeemer on Corcovado turns a year older. The statue shares its day with Our Lady of Aparecida, patron of Brazil, and with Children's Day. Source: Archdiocese of Rio de Janeiro, checked .
- In September and October, the sapucaia trees put out pink leaves. They line the avenue to the Museu Nacional palace in Quinta da Boa Vista. Source: Agência O Globo (via Tribuna do Sertão), checked .
Key figures
Weather in October, 1991-2020 model estimates
- Daily high
- no data
- Daily low
- 19.8 °C (67.6 °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 October 2026
- Sunrise
- 05:20 local time
- Sunset
- 17:57 local time
- Day length
- 12 h 37 min
Day length 1-31 October: 12 h 18 min to 12 h 57 min, +39 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 | October | Rank |
|---|---|---|
| Daily high | no data | no data |
| Daily low | 19.8 °C | 6th coldest |
| Rain | no data | no data |
| Sunshine | no data | no data |
| Day length | 12 h 37 min | 5th 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 |
|---|---|
| Monday | Our Lady of Aparecida legis.sigepe.gov.br |
Typed from the official list and re-checked, .
October 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 October: weather, daylight, holidays". https://citybymonth.com/cities/brazil/rio-de-janeiro/october/. Last updated 8 November 2026.