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Weather in Cascais for June 2026

Your guide to Cascais weather in June - trends and predictions

    Official Weather Alert ⚠️

  • Yellow High Temperature Warning - See hour by hour.

    • Temperatures

  • Until now, June 2026 in Cascais has been nearly identical to the historical average, with a temperature of 20.9 °C (showing only a slight deviation of -0.2 °C).

  • The forecast for the next days in Cascais predicts temperatures to be around 21 °C, close to the historical average.

  • In general, the average temperature in Cascais at the beginning of June is 20.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 21 °C by the end of June.

    • Rain 🌧️

  • Cascais experiences moderate rainfall in June, with an average of 6 rainy days and a total precipitation of 15.4 mm.

    • More

  • Is June a good time to visit Cascais? check out the best time to travel to Cascais page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
24
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/17°
Temperatures
Average wind speed
28 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Cascais Weather June

Move between months or click on a day
May
July
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
21°
2
Patchy rain possible
20°
3
Sunny
20°
4
Sunny
20°
5
Sunny
20°
6
Partly cloudy
21°
7
Heavy rain at times
20°
8
Sunny
20°
9
Sunny
21°
10
Patchy rain possible
20°
11
Patchy rain possible
21°
12
Sunny
21°
13
Sunny
22°
14
Partly cloudy
21°
15
Sunny
21°
16
Sunny
23°
17
Sunny
24°
18
Partly cloudy
23°
19
Patchy rain possible
22°
20
Cloudy
21°
21
Weather Alert Sunny
23°
22
Weather Alert Patchy rain possible
22°
23
Sunny
22°
24
Sunny
21°
25
Patchy rain possible
21°
26
Sunny
21°
27
Sunny
21°
28
Sunny
21°
29
Sunny
22°
30
Patchy rain possible
20°

Temperatures trend during June in Cascais

See the weather trend as well as the moving average line

June weather in Cascais day by day

Click on a date for more information
May July
Date Weather Temperatures Rain UV More
1 Jun. Sunny
Sunny
 21° /16° 0 mm 7
2 Jun. Patchy rain possible
Patchy rain possible
 20° /16° 0.5 mm 7
3 Jun. Sunny
Sunny
 20° /16° 0.5 mm 7
4 Jun. Sunny
Sunny
 20° /16° 0.4 mm 7
5 Jun. Sunny
Sunny
 20° /15° 0 mm 7
6 Jun. Partly cloudy
Partly cloudy
 21° /16° 0.3 mm 7
7 Jun. Heavy rain at times
Heavy rain at times
 20° /16° 0.9 mm 7
8 Jun. Sunny
Sunny
 20° /16° 2.8 mm 7
9 Jun. Sunny
Sunny
 21° /16° 0.4 mm 7
10 Jun. Patchy rain possible
Patchy rain possible
 20° /16° 0.2 mm 6
11 Jun. Patchy rain possible
Patchy rain possible
 21° /16° 0.2 mm 6
12 Jun. Sunny
Sunny
 21° /16° 0.2 mm 7
13 Jun. Sunny
Sunny
 22° /16° 0 mm 7
14 Jun. Partly cloudy
Partly cloudy
 21° /16° 0 mm 6
15 Jun. Sunny
Sunny
 21° /16° 0 mm 7
16 Jun. Sunny
Sunny
 23° /16° 0.1 mm 7
17 Jun. Sunny
Sunny
 24° /17° 0.2 mm 7
18 Jun. Partly cloudy
Partly cloudy
 23° /17° 1 mm 7
19 Jun. Patchy rain possible
Patchy rain possible
 22° /17° 1.5 mm 6
20 Jun. Cloudy
Cloudy
 21° /16° 0.2 mm 5
21 Jun. Sunny
Sunny
 23° /18° 0 mm 9.3
22 Jun. Patchy rain possible
Patchy rain possible
 22° /19° 3.2 mm 4.5
23 Jun. Sunny
Sunny
 22° /19° 0 mm 8.4
24 Jun. Sunny
Sunny
 21° /19° 0 mm 8.6
25 Jun. Patchy rain possible
Patchy rain possible
 21° /18° 0.4 mm 9.3
26 Jun. Sunny
Sunny
 21° /18° 0 mm 5
27 Jun. Sunny
Sunny
 21° /18° 0 mm 5
28 Jun. Sunny
Sunny
 21° /18° 0 mm 5
29 Jun. Sunny
Sunny
 22° /18° 0 mm 5
30 Jun. Patchy rain possible
Patchy rain possible
 20° /18° 0.1 mm 4
Next
Important Notice
Our weather forecast for Cascais in June is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Cascais forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Cascais weather in June vs May vs July

Compare June weather in Cascais with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
MayJuneJuly
WeatherPatchy rain possible
Patchy rain possible
Sunny
Sunny
Sunny
Sunny
Temperatures19°/15°21°/17°23°/18°
Rainfall27 mm15 mm2 mm
Wind26.7 km/h27.5 km/h29.4 km/h
Humidity74%78%79%
Rainy days6 days6 days1 days
Dry days25 days24 days30 days

Planning a trip to Cascais? Discover the best time to visit

Cascais in June - FAQ

What are the expected maximum and minimum temperatures in Cascais during June?

During June, expect a variety of temperatures with highs around 21° and lows near 17°, suitable for diverse activities and preferences.

How much rainfall should be expected in Cascais during June?

Expect minimal rainfall in Cascais during June, with a total of 15.4 mm over approximately 6 days. This minimal precipitation is unlikely to significantly impact plans.

What are the typical wind conditions in Cascais during June?

The average wind speed in Cascais during June is 28 km/h, suggesting breezy to windy conditions, depending on your activities.

Cascais water temperatures in June

The average water temperature of the Atlantic Ocean near Cascais in June is 15.7 °C. At the beginning of June temperatures are around 15.5 °C; by the end of the month they get a bit warmer and reach 16.2 °C.

What is the water temperature in Cascais in June?
The average water temperature in Cascais in June is 15.7 °C.
Can you swim in Cascais in June?
Brisk: quick dips and active swimming are fine, but pack a 2–3 mm spring suit if you plan longer sessions or early-morning outings.

What to pack to Cascais in June?

As you prepare for your trip to Cascais in June, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Cascais, during June, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
    • Rain Gear: Lightweight, waterproof clothing
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days

June rainfall patterns in Cascais

Explore the daily rainfall trends and prepare for Cascaiss June weather 💧
Typically, Cascais has 6 rainy days in June with a total of 15.4 mm of rainfall.

UV exposure in Cascais during June

Stay informed about UV levels for safe outdoor activities throughout the month of June ☀️

Quick links

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Location coordinates Where is Cascais?

Get accurate weather forecasts for Cascais, located at latitude 38.697 and longitude -9.421. Stay updated with localized weather information tailored for Cascais.

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