Weather in Cascais for May 2027
In general, the average temperature in Cascais at the beginning of May is 17.7 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 20.6 °C by the end of May.
Cascais experiences moderate rainfall in May, with an average of 6 rainy days and a total precipitation of 27.2 mm.
Is May a good time to visit Cascais? check out the best time to travel to Cascais page.
✨ Is May a good time to visit Cascais? – Ask the AI Weatherman
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Cascais Weather May
Temperatures trend during May in Cascais
May weather in Cascais day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Patchy rain possible | 18° /13° | 0.7 mm | 6 | |
| 2 May |  Light rain | 18° /14° | 5.5 mm | 5 | |
| 3 May | Light rain | 17° /14° | 2.9 mm | 5 | |
| 4 May | Patchy rain possible | 17° /14° | 1.9 mm | 5 | |
| 5 May |  Cloudy | 18° /14° | 0.9 mm | 6 | |
| 6 May | Patchy rain possible | 18° /14° | 0.3 mm | 6 | |
| 7 May |  Partly cloudy | 18° /13° | 0 mm | 6 | |
| 8 May | Patchy rain possible | 20° /14° | 1.9 mm | 5 | |
| 9 May | Light rain | 19° /15° | 5.4 mm | 5 | |
| 10 May | Light rain | 18° /15° | 2.7 mm | 5 | |
| 11 May |  Overcast | 18° /14° | 0.5 mm | 4 | |
| 12 May | Partly cloudy | 18° /14° | 0.8 mm | 5 | |
| 13 May |  Sunny | 18° /14° | 0.5 mm | 6 | |
| 14 May | Patchy rain possible | 17° /14° | 0.2 mm | 6 | |
| 15 May | Partly cloudy | 18° /14° | 0.2 mm | 6 | |
| 16 May | Sunny | 19° /14° | 0.3 mm | 6 | |
| 17 May | Sunny | 19° /15° | 0.4 mm | 6 | |
| 18 May | Patchy rain possible | 19° /14° | 0.2 mm | 6 | |
| 19 May | Patchy rain possible | 19° /15° | 0.3 mm | 6 | |
| 20 May | Overcast | 20° /15° | 0.1 mm | 6 | |
| 21 May | Patchy rain possible | 20° /16° | 0.3 mm | 6 | |
| 22 May | Partly cloudy | 20° /16° | 0.5 mm | 6 | |
| 23 May | Partly cloudy | 21° /15° | 0.2 mm | 7 | |
| 24 May | Sunny | 20° /15° | 0.3 mm | 7 | |
| 25 May | Sunny | 20° /15° | 0 mm | 7 | |
| 26 May | Sunny | 21° /16° | 0 mm | 7 | |
| 27 May | Sunny | 20° /16° | 0.1 mm | 6 | |
| 28 May | Sunny | 20° /16° | 0 mm | 7 | |
| 29 May | Sunny | 21° /16° | 0 mm | 7 | |
| 30 May | Sunny | 21° /16° | 0 mm | 7 | |
| 31 May | Sunny | 22° /16° | 0 mm | 7 | |
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Cascais weather in May vs April vs June
| April | May | June | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Sunny |
| Temperatures | 18°/13° | 19°/15° | 21°/17° |
| Rainfall | 40 mm | 27 mm | 16 mm |
| Wind | 26.4 km/h | 26.6 km/h | 28.2 km/h |
| Humidity | 75% | 74% | 79% |
| Rainy days | 7 days | 6 days | 4 days |
| Dry days | 23 days | 25 days | 26 days |
Planning a trip to Cascais? Discover the best time to visit
Cascais in May - FAQ
What are the expected maximum and minimum temperatures in Cascais during May?
How much rainfall should be expected in Cascais during May?
What are the typical wind conditions in Cascais during May?
Cascais water temperatures in May
The average water temperature of the Atlantic Ocean near Cascais in May is 14.6 °C. At the beginning of May temperatures are around 14.1 °C; by the end of the month they get warmer and reach 15.1 °C.
- What is the water temperature in Cascais in May?
- The average water temperature in Cascais in May is 14.6 °C.
- Can you swim in Cascais in May?
- 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.
May rainfall patterns in Cascais
UV exposure in Cascais during May
What to pack to Cascais in May?
Mild · highs around 19 °C, occasional showers
As you prepare for your trip to Cascais in May, 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 May, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
🎒 Accessories
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.