During May, Lagos experiences pleasant daytime temperatures of 22°C (72°F) and cooler nights around 15°C (59°F). Some rainfall is typical during this period.
If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August, September and October typically offer the best circumstances for Lagos.
Min Temperature
Max Temperature
Chance of Rain
Precipitation
Rainy days
Sunshine
Percentage Sunshine
Pick a month to see the average temperature, rainfall and sunshine in Lagos - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Lagos typically stay consistent throughout May, with daily highs averaging around 22°C (72°F). Nights are pleasant, with lows typically ranging from 13°C (55°F) to 16°C (61°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Lagos spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Lagos from 1976 through 2026.
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 →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Lagos climate overview or explore weather in Portugal.
Where to go in May - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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