Formia Temperature by Month
The average annual maximum temperature in Formia, Lazio, Italy is 20°C (68°F), with daytime highs ranging from 13°C (55°F) in February to 28°C (82°F) in August. This page covers monthly averages, day-night differences, and how Formia compares to cities worldwide.
Formia Monthly Temperatures
Depending on the time of the year, temperatures range from warm to mild in Formia. Nighttime lows follow the same pattern, ranging from 22°C (72°F) to 7°C (45°F).
The chart below illustrates the average maximum day and minimum night temperatures in Formia by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 300 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Formia vs Italy
The map below shows the annual temperature across Italy. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Formia vs World: Temperature Compared
Formia's average annual maximum temperature is 20°C (68°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.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
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 Formia this rarely lasts long on the ground.
For more on Formia's weather — including monthly rainfall, sunshine hours, and humidity — visit our Formia climate page.
