Sunheron logo
SunheronYour holiday finder
Where to travel
Find best place for you ->
Find destination...
°C°F

Central Portugal

Cascais weather and climate

Central Portugal

Cascais weather and climate

 

Day

23 °C

 

Night

15 °C

 

Sea

18 °C

 

Precipitation

5 mm

in month

 

Rainy days

1 days

in month

 

Daylight

14 hours

average

 

Sunshine

11 hours

average

 

Humidity

65 %

 

Day

23 °C

 

Night

15 °C

 

Sea

18 °C

 

Precipitation

5 mm

in month

 

Rainy days

1 days

in month

 

Daylight

14 hours

average

 

Sunshine

11 hours

average

 

Humidity

65 %

Overview: Cascais
Cascais, a coastal town in Portugal, boasts a warm climate characterized by its mild weather patterns throughout the year. Daily temperatures in this region typically range from 15 °C (59 °F) in the colder months to the peak of 24 °C (74 °F) during the warmer period in August. The least amount of rainfall occurs in July, with an average of only 1 day expressing precipitation. In stark contrast, November is the month with the highest frequency of rainfall, reaching up to 11 days. Additionally, ocean temperatures fluctuate between 15 °C (58 °F) in the colder months and 19 °C (66 °F) in the month of August. As night falls, temperatures drop to a range between 9 °C (48 °F) in January to 16 °C (60 °F) in the height of summer.

Weather charts for Cascais

Weather overview
Weather overview
Weather overview
Show more charts
Architecture in Cascais on a sunny day

Find more destinations like this

Travel essentials
Weather
Beach
Nature
City
Prices
Other

Where do you want to go?

When do you want to go?

Your ideal holidays are?

Who are you travelling with?

Day temperature

I don't care

Wet days

I don't care

Overall prices

Where do you want to go?

Your ideal holidays are?

When do you want to go?

Day temperature

I don't care

Destinations with similar weather to Cascais

Other destinations in Central Portugal

Closest cities for Cascais


Weather overview for Cascais

Weather overview

Cascais, a coastal town in Portugal, boasts a warm climate characterized by its mild weather patterns throughout the year. Daily temperatures in this region typically range from 15 °C (59 °F) in the colder months to the peak of 24 °C (74 °F) during the warmer period in August. The least amount of rainfall occurs in July, with an average of only 1 day expressing precipitation. In stark contrast, November is the month with the highest frequency of rainfall, reaching up to 11 days. Additionally, ocean temperatures fluctuate between 15 °C (58 °F) in the colder months and 19 °C (66 °F) in the month of August. As night falls, temperatures drop to a range between 9 °C (48 °F) in January to 16 °C (60 °F) in the height of summer.

January weather

During January, Cascais experiences its lowest daytime temperatures, averaging 15 °C (59 °F), while the sea temperature slightly decreases from the previous month to 15 °C (59 °F). The downturn in the number of rainy days begins, averaging 10 days, and a similar decrease in the total rainfall amount is also evident. Nighttime temperatures reach their lowest at 9 °C (48 °F), and the peak in humidity is recorded at 81 %.

February weather

February sees a gentle increase in daytime temperatures with an average of 16 °C (60 °F) in Cascais, while the sea temperature hits its yearly low. February also marks the beginning of a gradual increase in nighttime temperatures. Rainfall continues to decrease when compared to the previous month, and there's a noticeable uptick in the number of cloudless hours.

March weather

With the onset of March, both day (18 °C (64 °F)) and night (11 °C (51 °F)) temperatures in Cascais rise progressively. The trend of fewer rainy days continues, now at 7 days, while the total rainfall reduces to 49 mm (1.91 in). As the sun shines brighter, the number of sunny hours increases to 7 hours.

April weather

April in Cascais is characterized by further rising temperatures, with daytime averages of 18 °C (65 °F) and nighttime around 11 °C (53 °F). An upturn in the number of rainy days can be noted, averaging 9 days, along with a slight increase in rainfall amounts 58 mm (2.29 in). The hours of sunshine also rise, recorded at 8 hours.

May weather

May brings a discernible rise in the sea temperature to 16 °C (61 °F) in Cascais, alongside stable increases in daytime readings that reach 20 °C (68 °F). The downtrend in rainy days descends to 6 days, with a concurrent reduction in rainfall measured at 44 mm (1.73 in). Nighttime warmth climbs as well, averaging 13 °C (55 °F), and the hours of sunshine reach a notable 9 hours.

June weather

June witnesses the sea temperature climbing further in Cascais, paralleled by a continuous rise in the daytime temperature peaking at 23 °C (73 °F). Rainfall dwindles to just 15 mm (0.58 in), and there are meager 3 days of rainy days. The increase in hours of sunlight continues to be apparent.

July weather

July marks the beginning of the tourist season in Cascais. The sea temperature escalates to 18 °C (65 °F), and daytime temperatures rise to a comfortable 23 °C (74 °F). A minimal number of rainy days, averaging 1 day, coincides with the lowest rainfall levels of 5 mm (0.18 in). An all-time high in the number of hours without clouds is a highlight of this month.

August weather

August in Cascais reaches the apex of warmth, with maximum daytime temperatures of 24 °C (74 °F), and sea temperatures also peaking at 19 °C (66 °F). As the tourist and dry seasons approach their zenith, the minimal rainfall conditions persist, and evenings remain comfortably warm with night temperatures hitting 16 °C (60 °F). Minimum humidity levels are recorded at 64 %.

September weather

The conclusion of the peak tourist season occurs in September, yet the warm and dry weather prevails in Cascais. A subtle decline in day temperatures is noted, and the rainy days begin to pick up slightly, averaging 4 days. The sunshine hours see a decrease, reflecting the transition towards autumn.

October weather

October's climate in Cascais is marked by a further decrease in daytime temperatures to 21 °C (70 °F), while the sea temperature starts its downward trend at 18 °C (65 °F). The rise in the number of rainy days is more pronounced, with an average of 9 days, and rainfall volumes increase to a comparable extent 87 mm (3.41 in). Night temperatures start to drop, paralleling the descent in sunny hours.

November weather

November sees a continuation of the cooling trend in both day (18 °C (64 °F)) and sea (17 °C (63 °F)) temperatures in Cascais. The maximum number of rainy days is the norm, averaging 11 days, coupled with the highest volumes of rainfall achieving 109 mm (4.30 in). A decline in the hours of sun is also evident, marking a shift towards the colder months.

December weather

As the year winds down in December, Cascais witnesses a further dip in day temperatures, averaging 15 °C (60 °F), while the sea succumbs to a similar cooling pattern at 16 °C (61 °F). Night temperatures continue their gradual decrease, and the minimal sunshine hours reflect the shortening of the days.

FAQs

How cold can it get at night in Cascais in January?

In January, nighttime temperatures in Cascais can drop to as low as 9 °C (48 °F), making it the coldest part of the day.

What changes are seen in the sea temperature in February?

The sea temperature in Cascais reaches its annual minimum in February.

Is the sea warming up in March in Cascais?

March in Cascais does not typically bring a significant increase in sea temperatures.

Does April's weather in Cascais suggest more rainfall?

April sees an incremental rise in both rainy days and rainfall amount, indicating slightly wetter conditions compared to the previous month.

What can one anticipate regarding sunshine hours in May?

Expect an ample 9 hours of clear skies and sunshine during the day throughout May.

How do the sunshine hours evolve in June?

June promises extended periods of sunshine, contributing to the enjoyable summer weather.

Is the sea warm enough for swimming in July?

With sea temperatures averaging 18 °C (65 °F), July offers favorable conditions for swimming in Cascais.

What kind of weather should I expect in Cascais during August?

Expect the warmest weather in August, with peak sea and air temperatures, ideal for summer holiday activities.

Does the number of rainy days increase significantly in September?

No, September in Cascais experiences only a modest increase in rainy days.

Should I expect much rainfall in Cascais during October?

October brings a noticeable increase in both the frequency and volume of rainfall in Cascais.

Can I expect the rain to be frequent in November in Cascais?

Yes, November is characterized by the most frequent rainfall, with greater quantities expected.

How does the daylight duration change in December in Cascais?

December brings shorter days, with the shortest daylight hours of the year.

Appeared in TOP lists

Top 7 Destinations for Surfing Thrilling Waves This Autumn
Top 9 Destinations for Surfing on Thrilling Waves this Summer
Top 7 Budget Surfing Destinations for Thrilling Summer Waves
Top 5 Windsurfing Destinations in Europe
Top 7 Windsurfing Destinations on Windy Shores This Summer
Top 7 Destinations for Paddleboarding on Calm Waters in September
Top 7 Destinations for Paddleboarding on Calm European Waters
Top 7 Paddleboarding Spots for Families in Summer
Top 9 Family-Friendly Paddleboarding Destinations in Autumn
Top 9 Destinations for Sailing on Open Waters in August
Top 9 Destinations for Sailing on Open Waters in September
Top 7 Destinations for Sailing on Open Waters in Spring, Europe
Top 9 Sailing Destinations in Europe for Autumn Adventures
Top 7 Destinations for Sailing Enthusiasts This June
Top 5 Destinations for Autumn Hiking Through Gentle Nature Trails in Europe
Top 7 Destinations for Gentle Autumn Hikes Perfect for Couples
Top 7 Destinations for Spring Cycling on Scenic Roads
Top 9 Destinations for Couples to Hike Gentle Nature Trails in Spring
Top 7 Destinations for Budget-Friendly Autumn Hiking on Gentle Nature Trails
Top 7 Destinations for Cycling on Scenic Roads This Summer
Top 7 Destinations for Exploring Scenic Downtown Areas in June
Top 9 Scenic Downtown Explorations in Europe This Summer
Top 11 Destinations for Exploring Scenic Downtown Areas This Summer for Couples
Top 11 Destinations for Wandering Through Picturesque Streets in October
Top 11 Destinations for Wandering Through Picturesque Streets in November
Top 11 Destinations for Wandering Through Picturesque Streets in July
Top 5 Destinations for Wandering Through Picturesque Streets With Families
Top 9 Destinations for Wandering Through Picturesque Streets in Autumn for Couples
Top 9 Budget-Friendly Destinations for Autumn Street Wandering
Top 11 Destinations for Wandering Through Picturesque Streets in Summer for Couples
Top 7 Scenic Cycling Destinations in Europe
Top 9 Destinations to Explore Scenic Downtown Areas in September

Our latest blog posts

Where to go
Top destinations
Text Search