Estoril Weather in May
May in Estoril brings pleasant temperatures around 19°C (66°F) during the day, dropping to 15°C (59°F) at night, with some rainfall expected.
Rainfall in Estoril in May
Records from the past 30 years suggest around 9 days of rain, with 44 mm (1.7 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Estoril in May
Estoril in May gets highs of 19°C (66°F) during the day and drops to 15°C (59°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 15°C (59°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Estoril in May
The city usually sees around 316 hours of sunlight, indicating many sunny days — a great month for sightseeing.If you prefer dry days with pleasant temperatures, June, July, August, September and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Estoril's climate page.
Estoril Temperature in May
Min Temperature
15°C (59°F)
Max Temperature
19°C (66°F)
Chance of Rain
28%
Precipitation
44 mm (1.7 in)
Rainy days
9 days
Humidity
74% *
Sunshine
316 hours *
Percentage Sunshine
71% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Estoril typically stay consistent throughout May, with daily highs averaging around 19°C (66°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 15°C (59°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Estoril in May
Browse day-by-day weather records for Estoril spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Estoril historical weather extremes in May
Based on 50 years of weather observations in Estoril between 1976 and 2026, these are the recorded extremes.
- Estoril recorded its highest May temperature of 36°C (97°F) on May 28, 2001.
- Estoril experienced its chilliest May day on May 9, 1981, reaching only 13°C (55°F).
- The coldest night in May in Estoril was on May 14, 1988, with a minimum of 7°C (45°F).
Best Places in Portugal in May
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in May →
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What to Wear in Estoril in May
For Estoril in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Estoril in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Estoril's climate page.
Temperature Rainfall Sunshine Humidity
See the full Estoril climate overview or explore weather in Portugal.
