Port-au-Prince Temperature by Month

Port-au-Prince, Haiti has a consistently comfortable climate year-round, with daytime highs averaging 29°C (84°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.

With little seasonal fluctuation, Port-au-Prince offers a predictable and steady climate. Maximum daytime temperatures reach a very warm 31°C (88°F) in July and a comfortable 28°C (82°F) in January. At night, lows range from 22°C (72°F) to 18°C (64°F) throughout the year.

The chart below illustrates the average maximum day and minimum night temperatures in Port-au-Prince by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. July, the city's warmest month, gets 280 hours of sunshine.

The chart below shows the average temperature throughout the year:

Port-au-Prince's average annual maximum temperature is 29°C (84°F). To put that in context, here's how it compares to a few well-known destinations:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Beijing, China averages 20°C (68°F) annually, but with big seasonal swings, very cold winters and hot summers.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Port-au-Prince, January is the coolest month, with average highs of 28°C (82°F) and humidity around 44%, considered moderate. In July, the warmest month, temperatures average 31°C (88°F) with 43% humidity, conditions that feel moderate. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Port-au-Prince this rarely lasts long on the ground.

For more on Port-au-Prince's weather, including monthly rainfall, sunshine hours, and humidity, visit our Port-au-Prince climate page.