Porto in October
In October, Porto has 151.2 mm (5.95 in) of rain, a daily high of 21.4 °C (70.5 °F) and a daily low of 13.3 °C (55.9 °F), as 1991-2020 model estimates; figures in brackets are converted. The daily high is a model estimate, adjusted against station records.
Last updated : first sourced version.
Best time to visit Porto: October is a near miss for our rule: rain is 1.2 mm over our 150 mm (model estimates). Expect 11.3 rain days (model estimate) and days that shorten by 1 h 19 min.
What October is like in Porto
- In mid-October, the International Puppet Festival takes the stage of the Porto Municipal Theatre. Some of its puppets are made of wood and cork. Source: Câmara Municipal do Porto (Porto city council), checked .
- On 11 October, Porto keeps the feast of its patron, Our Lady of Vandoma. Her painted image, said to date from the fourteenth century, is in the Sé cathedral. Source: Câmara Municipal do Porto (Porto city council), checked .
- In autumn, four rows of sweetgum trees line the Alameda dos Liquidâmbares at Serralves. Their star-shaped leaves, with five points, turn deep shades of red. Source: Fundação de Serralves (park biodiversity leaflet), checked .
Key figures
Weather in October, 1991-2020 model estimates
- Daily high
- 21.4 °C (70.5 °F)
- Daily low
- 13.3 °C (55.9 °F)
- Rain
- 151.2 mm (5.95 in) in the month
- 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. Daily high and Days with rain: model estimate, adjusted against station records. Licence: CC BY 4.0. Checked . How we make and test model estimates
Model estimate for the ERA5-Land grid cell at 41.1° N, 8.6° W, 6 km from the city centre point.
How we define and convert these figures
Notes. Sunshine: Not in our ERA5-Land estimates.
Daylight on 15 October 2026
- Sunrise
- 07:46 local time
- Sunset
- 18:54 local time
- Day length
- 11 h 08 min
Day length 1-31 October: 11 h 46 min to 10 h 27 min, -1 h 19 min.
Source: NOAA Solar Calculator equations, checked .
Clocks go back one hour on Sunday 25 October 2026 at 02:00 (UTC+1 to UTC+0); in 2027 on 31 October.
Source: tz database 2026d, checked .
Month by month
Each month: daily high in °C, then rain in mm, 1991-2020 model estimates.
ERA5-Land model estimates 1991-2020, as above, checked .
This month against the year
| Measure | October | Rank |
|---|---|---|
| Daily high | 21.4 °C | 6th warmest |
| Daily low | 13.3 °C | 5th warmest |
| Rain | 151.2 mm | wettest |
| Sunshine | no data | no data |
| Day length | 11 h 08 min | 5th shortest |
Equal values share a rank. How we rank months
Porto in October, on average: 11.3 rain days (1 mm or more). Model estimate, adjusted against station records.
ERA5-Land model estimates 1991-2020, as above, checked .
Day length: NOAA solar equations, checked .
Public holidays this month
| Date | Holiday |
|---|---|
| Monday | Republic Day |
Typed from the official list and re-checked, .
October 2027: no data. No official page gives the 2027 Easter and Corpus Christi dates yet.
English names are from the holidays library where the official list gives none. How we check holidays
Source: Official public holiday list (dgaj.justica.gov.pt), checked ; holidays Python library, checked . Library: holidays 0.105.
Same month in 8 model-estimate cities
Porto is warmer than 2 of our 8 model-estimate cities in October by mean daily high. How we rank cities
Closest high and low in October: Istanbul (1.1 °C apart, equal), Sydney (1.1, equal), Lisbon (2.0).
| City | Gap from Porto, °C | High, °C | Low, °C | Rain, mm | Sunshine, hours |
|---|---|---|---|---|---|
| Porto (this page) | — | 21.4 | 13.3 | 151.2 | no data |
| Istanbul (closest) | 1.1 | 20.2 | 14.2 | 75.8 | no data |
| Sydney (closest) | 1.1 | 22.8 | 14.1 | 59.4 | no data |
| Lisbon (closest) | 2.0 | 22.5 | 16.1 | 79.7 | no data |
| Melbourne | 2.7 | 19.9 | 9.4 | 67.0 | no data |
| Delhi | 8.8 | 33.0 | 19.3 | no data | no data |
| Bangkok | 10.6 | 31.5 | 24.3 | no data | no data |
| Mumbai | 11.0 | 32.2 | 24.5 | no data | no data |
Sources (1991-2020): ERA5-Land model estimates, checked . Each city's page names its grid cell. All sources in full on Methodology.
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 .
- IANA Time Zone Database, read through the PyPI tzdata package. Attribution: IANA Time Zone Database. Licence: Public-domain data. Checked .
- holidays Python library, run locally. Attribution: holidays library, Vacanza team. Licence: MIT. Checked .
Official sources
Cite this page: City by Month. "Porto in October: weather, daylight, holidays". https://citybymonth.com/cities/portugal/porto/october/. Last updated 8 November 2026.