Belize Temperature by Month

Belize, Belize has a consistently very warm climate year-round, with daytime highs averaging 31°C (88°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.

The temperature in Belize changes very little across the seasons, maintaining a similar climate throughout the year. Maximum daytime temperatures range from a comfortable 28°C (82°F) in January to a very warm 32°C (90°F) in May. Nighttime lows range from 26°C (79°F) in May to 22°C (72°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Belize 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 255 hours of sunshine.

The chart below shows the average temperature throughout the year:

Belize'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:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

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

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

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 Belize, January is the coolest month, with average highs of 28°C (82°F) and humidity around 82%, considered very high. In May, the warmest month, temperatures average 32°C (90°F) with 78% 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.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on Belize's weather, including monthly rainfall, sunshine hours, and humidity, visit our Belize climate page.