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Weather in Cascais for January 2027

Your guide to Cascais weather in January - trends and predictions

    Temperatures

  • In general, the average temperature in Cascais at the beginning of January is 14.8 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 15 °C by the end of January.

    • Rain 🌧️

  • The climate of Cascais in January is notably wet, with an average of 14 rainy days, and a total of 109.9 mm of precipitation.

    • More

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

  • ✨ Is January a good time to visit Cascais? – Ask the AI Weatherman

Average dry days
17
Dry days
Average rainy days
14
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/11°
Temperatures
Average wind speed
31 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Cascais Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain
15°
2
Light rain
15°
3
Light rain
16°
4
Light rain
15°
5
Light rain
15°
6
Patchy rain possible
14°
7
Light rain
15°
8
Light rain
15°
9
Patchy rain possible
16°
10
Patchy rain possible
15°
11
Patchy rain possible
15°
12
Patchy rain possible
15°
13
Light rain
15°
14
Light rain shower
15°
15
Patchy rain possible
14°
16
Light rain
15°
17
Light rain
14°
18
Light rain
14°
19
Light rain
14°
20
Light rain
14°
21
Light rain
16°
22
Light rain
15°
23
Patchy rain possible
15°
24
Light rain
15°
25
Light rain
15°
26
Light rain shower
16°
27
Light rain
15°
28
Light rain
15°
29
Patchy rain possible
15°
30
Sunny
15°
31
Sunny
15°

Temperatures trend during January in Cascais

See the weather trend as well as the moving average line

January weather in Cascais day by day

Click on a date for more information
December February
Date Weather Temperatures Rain UV More
1 Jan. Light rain
Light rain
 15° /11° 4.6 mm 2.1
2 Jan. Light rain
Light rain
 15° /12° 5.5 mm 2.1
3 Jan. Light rain
Light rain
 16° /13° 5.5 mm 2.1
4 Jan. Light rain
Light rain
 15° /12° 3.5 mm 2.1
5 Jan. Light rain
Light rain
 15° /11° 5.2 mm 2.1
6 Jan. Patchy rain possible
Patchy rain possible
 14° /11° 1.3 mm 2.1
7 Jan. Light rain
Light rain
 15° /12° 3.7 mm 2.1
8 Jan. Light rain
Light rain
 15° /13° 4.9 mm 2.2
9 Jan. Patchy rain possible
Patchy rain possible
 16° /14° 0.7 mm 2.2
10 Jan. Patchy rain possible
Patchy rain possible
 15° /12° 0.3 mm 2.2
11 Jan. Patchy rain possible
Patchy rain possible
 15° /12° 0.8 mm 2.2
12 Jan. Patchy rain possible
Patchy rain possible
 15° /12° 0.3 mm 2.3
13 Jan. Light rain
Light rain
 15° /12° 8.1 mm 2.3
14 Jan. Light rain shower
Light rain shower
 15° /12° 2.4 mm 2.3
15 Jan. Patchy rain possible
Patchy rain possible
 14° /12° 1.4 mm 2.3
16 Jan. Light rain
Light rain
 15° /12° 4.3 mm 2.4
17 Jan. Light rain
Light rain
 14° /11° 4.5 mm 2.4
18 Jan. Light rain
Light rain
 14° /10° 4.2 mm 2.4
19 Jan. Light rain
Light rain
 14° /11° 7 mm 2.5
20 Jan. Light rain
Light rain
 14° /12° 6.8 mm 2.5
21 Jan. Light rain
Light rain
 16° /12° 6 mm 2.5
22 Jan. Light rain
Light rain
 15° /12° 5.8 mm 2.6
23 Jan. Patchy rain possible
Patchy rain possible
 15° /11° 2.1 mm 2.6
24 Jan. Light rain
Light rain
 15° /10° 3.1 mm 2.7
25 Jan. Light rain
Light rain
 15° /11° 3.7 mm 2.7
26 Jan. Light rain shower
Light rain shower
 16° /12° 1.4 mm 2.7
27 Jan. Light rain
Light rain
 15° /11° 4.6 mm 2.8
28 Jan. Light rain
Light rain
 15° /11° 4.6 mm 2.8
29 Jan. Patchy rain possible
Patchy rain possible
 15° /11° 2.4 mm 2.9
30 Jan. Sunny
Sunny
 15° /11° 0.7 mm 2.9
31 Jan. Sunny
Sunny
 15° /11° 0.4 mm 3
Next
Important Notice
Our weather forecast for Cascais in January 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 January vs December vs February

Compare January 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.
DecemberJanuaryFebruary
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures15°/12°15°/11°15°/12°
Rainfall66 mm110 mm88 mm
Wind27 km/h30.9 km/h28.4 km/h
Humidity73%76%76%
Rainy days9 days14 days9 days
Dry days22 days17 days19 days

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

Cascais in January - FAQ

What are the expected maximum and minimum temperatures in Cascais during January?
During January, expect a variety of temperatures with highs around 15° and lows near 11°, suitable for diverse activities and preferences.

How much rainfall should be expected in Cascais during January?
Significant rainfall exceeding 109.9 mm is expected in Cascais during January, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Cascais during January?
The average wind speed in Cascais during January is 31 km/h, suggesting breezy to windy conditions, depending on your activities.

Cascais water temperatures in January

The average water temperature of the Atlantic Ocean near Cascais in January is 13.9 °C. At the beginning of January temperatures are around 14.1 °C; by the end of the month they stay fairly steady and reach 13.7 °C.

What is the water temperature in Cascais in January?
The average water temperature in Cascais in January is 13.9 °C.
Can you swim in Cascais in January?
Cold enough that you lose heat fast. A full 4–5 mm wetsuit (plus hood/gloves for comfort) is advisable for anything beyond a brief plunge.

January rainfall patterns in Cascais

Explore the daily rainfall trends and prepare for Cascaiss January weather 💧
Typically, Cascais has 14 rainy days in January with a total of 109.9 mm of rainfall.

What to pack to Cascais in January?

🌦️ Mild · highs around 15 °C, frequent showers

As you prepare for your trip to Cascais in January, 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 January, is comfortable and enjoyable, regardless of the weather conditions.

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🧥 Clothing

👟 Footwear

🎒 Accessories

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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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