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Oiapoque

Weather in Ояпоки: What to Expect by Season

Photo: PoM, CC BY-SA 3.0

Weather overview

Ояпоки lies in a tropical climate zone, where warm temperatures persist year-round. The city rarely sees dramatic shifts, but the seasons still bring noticeable changes in rainfall and humidity. From May to August, the weather in Ояпоки is drier, offering more predictable conditions for outdoor activities. Meanwhile, April, May, and December bring heavier rains, which can influence travel plans.

Travelers to Ояпоки will find that even during the wettest months, temperatures remain steady, hovering around +25 °C to +29 °C. The dry season, particularly September and October, is often considered the most comfortable time to explore the area, with lower rainfall and slightly cooler evenings.

Temperature

In Ояпоки, the average temperature stays within a narrow range, rarely dropping below +22 °C or rising above +33 °C. The warmest period falls between August and October, when daytime highs can reach +32 °C to +33 °C, while nights remain mild at around +23 °C. Even in the cooler months, such as January or February, the difference is subtle, with averages around +25 °C.

The consistency of warmth in Ояпоки means there’s no need to plan around extreme cold or heat. However, the slight dip in temperatures during June and July—when highs average +30 °C—can make outdoor excursions more pleasant compared to the peak of the dry season.

Average air temperature °C
Average air temperature
Month Minimum Maximum
January 22.3 29.1
February 22.5 29.1
March 22.6 29.6
April 22.8 29.5
May 23.1 29.6
June 22.5 30.7
July 22.7 31
August 22.6 32.4
September 23 33.5
October 22.9 33.5
November 22.9 31.9
December 22.7 29.8

Precipitation

Rainfall in Ояпоки follows a clear seasonal pattern, with the heaviest downpours occurring from April to May and again in December. During these months, monthly precipitation can exceed 300 mm, sometimes leading to brief but intense showers. The driest period spans August to October, when rainfall drops to as low as 40 mm in September, making it an ideal time for those who prefer drier conditions.

Even in the wetter months, rain in Ояпоки doesn’t usually last all day. Short, heavy bursts are common, often followed by sunshine. Travelers should be prepared for sudden showers, especially in May, when rainfall peaks at 471 mm, the highest of the year.

Precipitation amount mm
Precipitation amount
Month Precipitation
January 311.8
February 316.3
March 265.3
April 376.4
May 471.1
June 285.6
July 246.4
August 128.5
September 40.2
October 57.5
November 173
December 351.5

What to pack

For a trip to Ояпоки, lightweight and breathable clothing is essential year-round. During the drier months, such as September and October, pack light layers for warm days and slightly cooler evenings. A compact umbrella or a waterproof jacket is useful if visiting during the wetter periods, particularly April, May, or December, when rain is more frequent.

Comfortable walking shoes are a must, as the terrain in and around Ояпоки can become slippery after rain. Sunglasses, sunscreen, and a hat will help protect against the strong tropical sun, which is present even on cloudier days. If traveling in the wet season, quick-dry fabrics and a small towel can be handy for unexpected downpours.

Average monthly wind m/s
Average monthly wind
Month Wind speed
January 2
February 2.1
March 2.2
April 1.9
May 1.7
June 1.7
July 1.6
August 1.8
September 2
October 1.9
November 1.7
December 1.7