Chetumal Temperature by Month
Chetumal in Quintana Roo, Mexico enjoys a stable climate, with daytime temperatures staying close to 31°C (88°F) throughout the year. Explore the full monthly breakdown below.
Chetumal Monthly Temperatures
Year-round, Chetumal experiences a consistently very warm climate. Maximum daytime temperatures range from a very warm 33°C (91°F) in May to a comfortable 29°C (84°F) in the coolest month, January. Nighttime temperatures range from 25°C (77°F) in May to 21°C (70°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Chetumal by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. May, the warmest month of the year, receives 277 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Chetumal vs Mexico
The map below shows the annual temperature across Mexico. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Chetumal vs World: Temperature Compared
Chetumal's average annual maximum temperature is 31°C (88°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Chetumal?
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 Chetumal, January is the coolest month, with average highs of 29°C (84°F) and humidity around 80% — considered very high. In May, the warmest month, temperatures average 33°C (91°F) with 74% humidity — conditions that feel high. 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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Chetumal's weather — including monthly rainfall, sunshine hours, and humidity — visit our Chetumal climate page.
