Matoury Weather in May

May in Matoury brings high temperatures, with highs of 30°C (86°F) and nights dropping to 24°C (75°F). It's the rainiest month of the year, so come prepared with waterproof gear.

Rainfall in Matoury in May

As part of the rainy season, Matoury sees around 26 days of rain in May, with an average of 409 mm (16 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.

Temperature in Matoury in May

Matoury in May gets highs of 30°C (86°F) during the day and drops to 24°C (75°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Sunshine in Matoury in May

The city usually sees around 122 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).

Wind Speed in Matoury in May

Wind speeds average 3 m/s (6 knots) during May. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in May

The water temperature is 28°C (82°F), which most people find very comfortable. A good month for swimming and water sports.

May in Matoury has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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For a detailed overview over the year and the best time to visit French Guiana, check out our Matoury's climate page.

Matoury Temperature in May

Min Temperature 24°C (75°F)  

Max Temperature 30°C (86°F)  

Water Temperature 28°C (82°F) *  

Chance of Rain 86%  

Precipitation 409 mm (16 in)  

Rainy days 26 days  

Humidity 85% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 122 hours *  

Percentage Sunshine *  

* Data from: Cayenne, French Guiana (4 KM, 2 Miles).

Daily Historical Temperatures

48-year average (1976-2025)

Based on our historical records, temperatures in Matoury typically stay consistent throughout May, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).

Average temperatures in May

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Daily Historical Precipitation

48-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in May

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Historical weather for Matoury in May

Browse day-by-day weather records for Matoury spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Matoury historical weather extremes in May

Based on 34 years of weather observations in Matoury between 1992 and 2026, these are the recorded extremes.

• The hottest May day on record in Matoury reached 33°C (91°F) (May 15, 2024).
• On May 6, 2003, Matoury saw its coldest May day with temperatures maxing out at 24°C (75°F).
• The coldest night in May in Matoury was on May 26, 2019, with a minimum of 15°C (59°F).
• The wettest day in May Matoury was on May 20, 2013 with 122 mm (4.8 in) of precipitation.

What to Wear in Matoury in May

Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Matoury in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit French Guiana, check out our Matoury's climate page.

More climate data for Matoury

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Matoury climate overview or explore weather in French Guiana.