Porto in July

In July, Porto has 22.3 mm (0.88 in) of rain, a daily high of 27.2 °C (81.0 °F) and a daily low of 16.9 °C (62.4 °F), as 1991-2020 model estimates; figures in brackets are converted. The daily high is a model estimate, adjusted against station records.

Last updated 8 November 2026: first sourced version.

Best time to visit Porto: July meets our rule. Expect 2.7 rain days (model estimate) and days that shorten by 42 min.

What July is like in Porto

In July, beach handball games fill the Estádio de Praia, the sand stadium by the Edifício Transparente. Play runs from morning until late at night. Source: Câmara Municipal do Porto (Porto city council), checked 8 November 2026.
In late July, folk groups from eight countries play and dance around Porto for a week. The big nights are in Praça dos Leões. Source: Câmara Municipal do Porto (Porto city council), checked 8 November 2026.
In July, the Porto Sunday Sessions bring free concerts and DJ sets to a city garden on Sunday afternoons. One year it was the Passeio Alegre garden. Source: Câmara Municipal do Porto (Porto city council), checked 8 November 2026.

How we choose these portraits

Key figures

Weather in July, 1991-2020 model estimates

Daily high: 27.2 °C (81.0 °F)
Daily low: 16.9 °C (62.4 °F)
Rain: 22.3 mm (0.88 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 8 November 2026. 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 July 2026

Sunrise: 06:15 local time
Sunset: 21:06 local time
Day length: 14 h 51 min

Day length 1-31 July: 15 h 05 min to 14 h 23 min, -42 min.

How we compute daylight

Source: NOAA Solar Calculator equations, checked 3 October 2026.

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 8 November 2026.

This month against the year

Porto: July ranked against the 12 months
Measure	July	Rank
Daily high	27.2 °C	2nd warmest
Daily low	16.9 °C	2nd warmest
Rain	22.3 mm	driest
Sunshine	no data	no data
Day length	14 h 51 min	2nd longest

Equal values share a rank. How we rank months

Porto in July, on average: 2.7 rain days (1 mm or more). Model estimate, adjusted against station records.

ERA5-Land model estimates 1991-2020, as above, checked 8 November 2026.

Day length: NOAA solar equations, checked 3 October 2026.

Public holidays this month

July 2026: none.

Typed from the official list and re-checked, 2 October 2026.

July 2027: no data. No official page gives the 2027 Easter and Corpus Christi dates yet.

How we check holidays

Source: Official public holiday list (dgaj.justica.gov.pt), checked 2 October 2026; holidays Python library, checked 3 October 2026. Library: holidays 0.105.

Same month in 8 model-estimate cities

Porto is warmer than 2 of our 8 model-estimate cities in July by mean daily high. How we rank cities

Closest high and low in July: Lisbon (0.9 °C apart), Istanbul (2.7), Mumbai (5.3).

July in 8 model-estimate cities: daily high and low, monthly rain, 1991-2020 model estimates. Bars: high and low share one scale, coldest to warmest city; rain starts at zero.
City	Gap from Porto, °C	High, °C	Low, °C	Rain, mm	Sunshine, hours
Porto (this page)	—	27.2	16.9	22.3	no data
Lisbon (closest)	0.9	27.5	18.4	3.8	no data
Istanbul (closest)	2.7	28.8	20.7	26.2	no data
Mumbai (closest)	5.3	29.2	25.5	no data	no data
Bangkok	7.4	33.0	25.8	no data	no data
Sydney	8.5	17.7	9.4	52.8	no data
Delhi	9.0	35.2	26.9	no data	no data
Melbourne	11.6	14.3	6.6	51.4	no data

Sources (1991-2020): ERA5-Land model estimates, checked 8 November 2026. Each city's page names its grid cell. All sources in full on Methodology.

All cities in July

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 8 November 2026.
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 3 October 2026.
holidays Python library, run locally. Attribution: holidays library, Vacanza team. Licence: MIT. Checked 3 October 2026.

Official sources

Official public holiday list (dgaj.justica.gov.pt). Checked 2 October 2026.

Cite this page: City by Month. "Porto in July: weather, daylight, holidays". https://citybymonth.com/cities/portugal/porto/july/. Last updated 8 November 2026.