Alcácer do Sal Temperature by Month
Alcácer do Sal, Alentejo, Portugal has an average annual maximum temperature of 23°C (73°F), ranging from 16°C (61°F) in January to 31°C (88°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Alcácer do Sal Monthly Temperatures
The climate in Alcácer do Sal is dynamic, ranging widely from moderate in winter to very warm in summer. Nights are significantly colder, with lows dropping from 17°C (63°F) in August to 7°C (45°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Alcácer do Sal by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. August, the city's warmest month, averages 350 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Alcácer do Sal vs Portugal
The map below shows the annual temperature across Portugal. You can also select individual months if you want to compare a specific time of year.
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Alcácer do Sal vs World: Temperature Compared
Alcácer do Sal's average annual maximum temperature is 23°C (73°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern 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.
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 Alcácer do Sal's weather — including monthly rainfall, sunshine hours, and humidity — visit our Alcácer do Sal climate page.
