What’s the climate like in Cascais?
The current climate of Cascais features average monthly temperatures ranging from highs of 28°C during the day to lows of 15°C. The average yearly temperature is around 22°C. At night, temperatures in the colder months average around 8°C and in the warmer months around 18°C.
The highest temperature recorded in Cascais in recent years was 40°C in June 2017. The lowest daytime temperature recorded was 7°C in January 2021.
On average, Cascais receives 691 mm of precipitation each year. For comparison, London gets 701 mm of precipitation annually.
Curious about the climate in other parts of Portugal? Check out the weather and climate in places like Algarve, Lisbon, Albufeira, or have a look at other destinations in Portugal.
Best time to visit Cascais?
The best time to visit Cascais for sunny weather is March through October. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Cascais. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Climate Table of Cascais
The climate table of Cascais shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 15 | 16 | 18 | 20 | 23 | 25 | 28 | 28 | 26 | 24 | 18 | 16 |
| Temp. min (°C) | 8 | 9 | 10 | 12 | 15 | 17 | 18 | 19 | 17 | 15 | 12 | 10 |
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| Precipitation (mm) | 82 | 70 | 74 | 74 | 40 | 12 | 1,8 | 2,8 | 28 | 83 | 124 | 99 |
| UV Index | 4 | 5 | 7 | 8 | 9 | 9 | 8 | 8 | 7 | 6 | 4 | 4 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 22°C
- Highest temperature: 28°C in July and August
- Lowest temperature: 15°C in January
- Precipitation: 691 mm per year, averaging 58 mm per month
- Driest months: 1,8 mm in July, 2,8 mm in August and 12 mm in June
- Wettest months: 124 mm in November, 99 mm in December and 83 mm in October
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Table of Contents
Average Temperature per Month in Cascais
This graph shows the average maximum temperatures per month in Cascais, Portugal. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Cascais
This graph shows how much precipitation Cascais, Portugal, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Cascais
This graph shows the average UV index per month in Cascais, Portugal. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Cascais
This graph shows the average yearly temperature in Cascais, Portugal. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Cascais
This chart shows the total yearly precipitation in Cascais, Portugal, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Cascais
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Average Weather in Cascais by Month
Click on a month below to see detailed weather info for Cascais. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
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