Porto in April
In April, Porto has 115.1 mm (4.53 in) of rain, a daily high of 19.2 °C (66.6 °F) and a daily low of 9.8 °C (49.6 °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: April meets our rule. Expect 10.4 rain days (model estimate) and days that grow by 1 h 16 min.
What April is like in Porto
- April is book month in Porto, by custom. The city libraries, such as the Almeida Garrett library, fill it with a programme of books and reading for all. Source: Câmara Municipal do Porto (Porto city council), checked .
- In mid-April, on Monuments and Sites Day, the city runs free guided walks. One year, a walk led past the old fountains in the gardens of Nova Sintra. Source: Câmara Municipal do Porto (Porto city council), checked .
- From late April into May, the DDD dance festival brings shows to Porto stages, such as the Teatro Nacional São João. Source: Câmara Municipal do Porto (Porto city council), checked .
- In April, a city walk stops at the Horto das Virtudes. There you can hear the calls of the midwife toad. Source: Câmara Municipal do Porto (Porto city council), checked .
Key figures
Weather in April, 1991-2020 model estimates
- Daily high
- 19.2 °C (66.6 °F)
- Daily low
- 9.8 °C (49.6 °F)
- Rain
- 115.1 mm (4.53 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 April 2026
- Sunrise
- 06:55 local time
- Sunset
- 20:14 local time
- Day length
- 13 h 19 min
Day length 1-30 April: 12 h 41 min to 13 h 57 min, +1 h 16 min.
Source: NOAA Solar Calculator equations, 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 | April | Rank |
|---|---|---|
| Daily high | 19.2 °C | 6th coldest |
| Daily low | 9.8 °C | 6th coldest |
| Rain | 115.1 mm | 5th wettest |
| Sunshine | no data | no data |
| Day length | 13 h 19 min | 5th longest |
Equal values share a rank. How we rank months
Porto in April, on average: 10.4 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 |
|---|---|
| Friday | Good Friday |
| Sunday | Easter Sunday |
| Saturday | Freedom Day |
Typed from the official list and re-checked, .
April 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 1 of our 8 model-estimate cities in April by mean daily high. How we rank cities
Closest high and low in April: Melbourne (1.5 °C apart), Lisbon (1.7), Istanbul (1.9).
| City | Gap from Porto, °C | High, °C | Low, °C | Rain, mm | Sunshine, hours |
|---|---|---|---|---|---|
| Porto (this page) | — | 19.2 | 9.8 | 115.1 | no data |
| Melbourne (closest) | 1.5 | 21.1 | 10.8 | 52.0 | no data |
| Lisbon (closest) | 1.7 | 19.8 | 12.6 | 54.7 | no data |
| Istanbul (closest) | 1.9 | 16.7 | 8.5 | 48.3 | no data |
| Sydney | 5.1 | 23.4 | 15.7 | 71.6 | no data |
| Mumbai | 14.7 | 34.2 | 24.2 | no data | no data |
| Delhi | 14.8 | 37.8 | 20.8 | no data | no data |
| Bangkok | 16.9 | 35.8 | 26.9 | 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 .
- holidays Python library, run locally. Attribution: holidays library, Vacanza team. Licence: MIT. Checked .
Official sources
Cite this page: City by Month. "Porto in April: weather, daylight, holidays". https://citybymonth.com/cities/portugal/porto/april/. Last updated 8 November 2026.