Acapulco Temperature by Month

Acapulco, Guerrero, Mexico 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 climate in Acapulco remains fairly constant, offering very warm temperatures throughout the year. Maximum daytime temperatures reach a very warm 32°C (90°F) in May, dropping to a very warm 30°C (86°F) in September. Nighttime lows stay between 25°C (77°F) and 23°C (73°F).

The chart below illustrates the average maximum day and minimum night temperatures in Acapulco 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:

Acapulco'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.

Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.

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

Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.

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 Acapulco, September is the coolest month, with average highs of 30°C (86°F) and humidity around 76%, considered high. In May, the warmest month, temperatures average 32°C (90°F) with 73% 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 Acapulco's weather, including monthly rainfall, sunshine hours, and humidity, visit our Acapulco climate page.