Altamonte Springs (FL) Temperature by Month

Altamonte Springs in Florida, United States of America sees significant seasonal temperature differences, with daytime highs between 21°C (70°F) in January and 33°C (91°F) in August, averaging 28°C (82°F) annually. Explore the full monthly breakdown below.

The climate in Altamonte Springs is dynamic, ranging widely from pleasant in winter to very warm in summer. Nights are significantly colder, with lows dropping from 24°C (75°F) in August to 9°C (48°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Altamonte Springs by month:

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.

The chart below shows the average temperature throughout the year:

Altamonte Springs's average annual maximum temperature is 28°C (82°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

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

Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.

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 Altamonte Springs, January is the coolest month, with average highs of 21°C (70°F) and humidity around 73%, considered high. In August, the warmest month, temperatures average 33°C (91°F) with 79% 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 Altamonte Springs's weather, including monthly rainfall, sunshine hours, and humidity, visit our Altamonte Springs climate page.