worldweatherTemperatures this week
14-21°CAverage forecast high: 18°C. Historical reference for these dates: 17°C.
Weather in Porto - 14-day forecast
Forecast updated: Tuesday 3 NovemberWeather history: NASA POWER · 1981-2025
Weather warnings
No active weather warnings for Porto (region: Portugal). The national weather service is not forecasting dangerous conditions.
Weather in the coming days
What will the week bring? Porto
3 November Porto: the high will be about 21°C and the low 8°C. Light rainfall - around 3.7 mm. 4 November it will be cooler: with a high of about 18°C.
21°C
maximum on Tue 3 Nov
Temperature, rainfall and historical comparison
Weather forecast compared with previous years
Choose a day to see the details. Temperatures show the daily high and low.
Forecast: daily highTypical range 1991-2020
Selected day in detail
Tuesday 3 November
Daily high21°CUsually 16-20°C
Daily low8°CColdest part of the day
Rainfall total3.7 mmLight rainfall
Maximum wind speed28 km/hForecast wind speed
Warmer than usual. The historical comparison uses daily highs at this time of year. The daily rainfall total shows the amount of rain forecast across the full day.
Full day-by-day forecast - table
| Date | Max. / min. | Rain | Typical daily high | Max. wind |
|---|---|---|---|---|
| Tuesday 3 November | 21° / 8° | 3.7 mm | 16-20°C | 28 km/h |
| Wednesday 4 November | 18° / 6° | 0 mm | 16-20°C | 19 km/h |
| Thursday 5 November | 14° / 8° | 3.2 mm | 15-19°C | 10 km/h |
| Friday 6 November | 17° / 10° | 15.5 mm | 15-19°C | 17 km/h |
| Saturday 7 November | 19° / 13° | 15.2 mm | 15-19°C | 14 km/h |
| Sunday 8 November | 17° / 16° | 15.1 mm | 15-19°C | 23 km/h |
| Monday 9 November | 19° / 16° | 32.2 mm | 15-19°C | 54 km/h |
| Tuesday 10 November | 16° / 14° | 20.3 mm | 15-18°C | 35 km/h |
| Wednesday 11 November | 14° / 12° | 8.4 mm | 15-18°C | 23 km/h |
| Thursday 12 November | 15° / 12° | 7.5 mm | 15-18°C | 12 km/h |
| Friday 13 November | 17° / 11° | 2.8 mm | 15-18°C | 18 km/h |
| Saturday 14 November | 18° / 12° | 9.1 mm | 15-18°C | 15 km/h |
| Sunday 15 November | 16° / 13° | 0.7 mm | 14-18°C | 8 km/h |
| Monday 16 November | 17° / 14° | 1.1 mm | 14-18°C | 9 km/h |
What stands out this week?
Temperature changes
Drop of 4°CFrom 4 November to 5 November. This is the day-to-day change in the forecast high.
Will it rain?
6 days with rain ≥1 mm7-day total: 84.9 mm. Across 45 historical seasons, the typical range for the same dates was 5-68 mm.
This summary covers the first 7 forecast days. A rainy day has at least 1 mm of rain. The historical comparison shows how often such days occurred in previous years.
Weather history 1981-2025
NASA POWERThe same week in previous years
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 3-9 Nov period averaged 17°C by day. The coolest year was 2000 (14°C) and the warmest was 2007 (21°C). The current forecast averages 18°C - higher than in 67% of historical years.
How do we compare the forecast with history?
The forecast chart band shows the 20th-80th percentiles of NASA POWER daily highs from 1991-2020, using the date and a ±7-calendar-day window. The line shows the forecast daily high. The year-by-year chart compares average highs over the same seven dates.
NASA POWER (MERRA-2) data describe conditions in the grid cell covering the location. Elevation and local conditions can affect the comparison.
NASA POWER source and methodologyPlan your trip
Partner offersTravel offers: Porto
What else should you know before travelling?
What weather is typical in the following weeks?
For dates beyond the 14-day forecast, we show typical conditions based on historical data.
Tue 17 Nov - Mon 30 Nov15°C / 10°Cusual daily high / low
Tue 1 Dec - Thu 17 Dec14°C / 9°Cusual daily high / low
Average of the daily medians for the following dates from 1991-2020. A comparison based on historical data.
Downloadable forecast graphic
Detailed weather forecast for Porto, Portugal: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
UV index in Porto - is it safe to sunbathe?
Today the UV index in Porto is 4 (moderate) - unprotected fair skin can burn in about 55 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.
Sea temperature - Porto
Water today
16°C
Week avg
16°C
Waves today
0.6 m
How's the water?
very cold
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Air quality and smog in Porto
Air quality in Porto is currently very good. Fine particulate PM2.5: 10.6 µg/m³, PM10: 16 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Porto | 10.6 | 16 | very good |
CAMS air-quality model data provided by Open-Meteo, updated daily. Colours represent PM2.5 concentration bands. Data time: 2026-11-03 02:00.
Porto weather through the year
| Month | Day | Night | Chance of rain |
|---|---|---|---|
| January | 14°C | 6°C | 60% |
| February | 14°C | 6°C | 61% |
| March | 15°C | 8°C | 59% |
| April | 18°C | 10°C | 41% |
| May | 20°C | 12°C | 37% |
| June | 22°C | 14°C | 28% |
| July | 24°C | 16°C | 12% |
| August | 25°C | 15°C | 17% |
| September | 23°C | 14°C | 27% |
| October | 22°C | 14°C | 44% |
| November | 17°C | 9°C | 41% |
| December | 15°C | 7°C | 35% |
Upcoming public holidays in Portugal: Restoration of Independence — 1 December · Immaculate Conception — 8 December · Christmas Day — 25 December.
Nearby and related places
Weather and travel dates: Porto
Based on the historical data in the climate table for this location.
Warmest months
August
Average daytime temperature: 25°C
Coolest months
January · February
Average daytime temperature: 14°C
Lowest share of days with precipitation
July
Share of days with precipitation: 12%
Before you travel
Check the forecast daytime and nighttime temperatures, precipitation and current warnings. Use them to choose clothing and plan outdoor activities.
Official travel information
Select your destination on the government website and check the latest advice. Entry requirements depend on factors including citizenship and the purpose of your trip.
FAQ - Porto weather
What will the weather be like today and tomorrow?
3 November Porto: the high will be about 21°C and the low 8°C. Light rainfall - around 3.7 mm. 4 November it will be cooler: with a high of about 18°C.
Will it rain in the coming days?
7-day total: 84.9 mm. Across 45 historical seasons, the typical range for the same dates was 5-68 mm.
What does the typical range on the chart mean?
It is the range between the 20th and 80th percentiles of NASA POWER daily highs from 1991-2020 for this time of year.
Embed the weather chart
Add this forecast to your website
Copy this HTML code into your website or blog. The chart is updated daily.