Porto-Novo Weather in May
With daytime temperatures of 31°C (88°F) and nighttime lows of 26°C (79°F), May in Porto-Novo brings very high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 195 mm (7.7 in) falls on average.
Rainfall in Porto-Novo in May
Historically, May sees about 13 days of rain, with a monthly average of 195 mm (7.7 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Porto-Novo in May
If you're visiting Porto-Novo in May, expect highs of 31°C (88°F) and overnight lows around 26°C (79°F). It's usually most comfortable outside during the morning and later in the day. Nights stay warm at around 26°C (79°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Porto-Novo in May
There are approximately 214 hours of sunshine this month, resulting in mostly clear days.May in Porto-Novo has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Porto-Novo Temperature in May
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Porto-Novo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Porto-Novo - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Porto-Novo typically stay consistent throughout May, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 25°C (77°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 records for Porto-Novo in May
Browse day-by-day weather records for Porto-Novo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Porto-Novo historical weather extremes in May
Our historical data for Porto-Novo spans 1992 to 2026, revealing these weather extremes.
- On May 5, 2001, temperatures climbed to 37°C (99°F), marking the warmest May day on record.
- The coldest May day was on May 11, 1992, with a maximum of 24°C (75°F).
- Nighttime temperatures dropped to 21°C (70°F) on May 31, 2004, marking the coldest May night on record.
Best Places in Benin in May
Find out more about the weather in Benin and which places have the best travel conditions in this month. See all of Benin 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).
What to Wear in Porto-Novo in May
Warm but pleasant conditions in Porto-Novo in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Porto-Novo in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming8/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Porto-Novo 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Porto-Novo climate overview or explore weather in Benin.
Popular in May
Where to go in May - average daytime high across popular destinations.
Dassa-Zoumé
34°C (93°F) Abomey33°C (91°F) Allada
32°C (90°F) Ouidah31°C (88°F) Ganvié31°C (88°F) Abomey-Calavi31°C (88°F) Cococodji31°C (88°F) Cotonou30°C (86°F) 
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