Santa Fe Province Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Santa Fe Province, Argentina in December.

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Rosario Rafaela Cayastá San Lorenzo

Planning a getaway to Santa Fe Province, Argentina this December and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Santa Fe Province in December

Santa Fe Province, Argentina is a region in Argentina. December in Santa Fe Province generally has very warm temperatures, with high precipitation. It's the height of summer.

Temperatures

You can expect very warm maximum daytime temperatures of around 30°C (86°F) and nighttime temperatures around 18°C (64°F) in Rosario. While the given temperatures for day and night are typical, there may be days that feel warmer. Make sure you're dressed in a way that keeps you cool and comfortable.

To explore the conditions in Santa Fe Province, Argentina in more detail, check the map below.

Precipitation

In December, precipitation varies across different areas. From high rainfall in Arroyo Seco with an average of 109 mm (4.3 in) to high rainfall in Reconquista with 154 mm (6.1 in).

Average sunshine

December brings good sunshine to many areas. Rosario sees around 279 hours of sunlight, great for visitors looking for bright days.

Explore Santa Fe Province by month

Pick a month to see the average temperature, rainfall and sunshine in Santa Fe Province — and find the best time to visit. (based on Rosario)

January31°C (88°F) February30°C (86°F) March28°C (82°F) April25°C (77°F) May21°C (70°F) June18°C (64°F) This monthJuly17°C (63°F) August20°C (68°F) September22°C (72°F) October25°C (77°F) November28°C (82°F) December30°C (86°F)
Best Time to Visit Santa Fe Province →

Best Places to Visit in Santa Fe Province in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Santa Fe Province.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Santa Fe Province

What is the weather like in December for some of the most popular destinations in Santa Fe Province, Argentina?

Temperature range in Santa Fe Province (December)

Precipitation variation in Santa Fe Province (December)

Rosario

In December Rosario generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 18°C (64°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« November
December
January »
November
December
January
Max temperature
28°C (82°F)
30°C (86°F)
31°C (88°F)
Min temperature
15°C (59°F)
18°C (64°F)
19°C (66°F)
Monthly sun hours
271 hours
279 hours
294 hours
Monthly rainfall
117 mm (4.6 in)
110 mm (4.3 in)
107 mm (4.2 in)
Monthly rainy days
9 days
9 days
9 days
Weather conditions
pleasant
tolerable
tolerable
Climate in Rosario →

Rafaela

In December Rafaela generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 18°C (64°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« November
December
January »
November
December
January
Max temperature
29°C (84°F)
31°C (88°F)
32°C (90°F)
Min temperature
16°C (61°F)
18°C (64°F)
20°C (68°F)
Monthly rainfall
126 mm (5 in)
131 mm (5.2 in)
122 mm (4.8 in)
Monthly rainy days
9 days
9 days
9 days
Weather conditions
pleasant
tolerable
tolerable
Climate in Rafaela →

Cayastá

In December Cayastá generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 19°C (66°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« November
December
January »
November
December
January
Max temperature
29°C (84°F)
31°C (88°F)
33°C (91°F)
Min temperature
17°C (63°F)
19°C (66°F)
21°C (70°F)
Monthly sun hours
241 hours
243 hours
271 hours
Monthly rainfall
117 mm (4.6 in)
136 mm (5.4 in)
115 mm (4.5 in)
Monthly rainy days
8 days
8 days
8 days
Weather conditions
pleasant
tolerable
tolerable
Climate in Cayastá →

San Lorenzo

In December San Lorenzo generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 18°C (64°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« November
December
January »
November
December
January
Max temperature
28°C (82°F)
30°C (86°F)
32°C (90°F)
Min temperature
16°C (61°F)
18°C (64°F)
19°C (66°F)
Monthly sun hours
271 hours
279 hours
294 hours
Monthly rainfall
117 mm (4.6 in)
114 mm (4.5 in)
108 mm (4.3 in)
Monthly rainy days
9 days
9 days
8 days
Weather conditions
pleasant
tolerable
tolerable
Climate in San Lorenzo →

Arroyo Seco

In December Arroyo Seco generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 18°C (64°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« November
December
January »
November
December
January
Max temperature
28°C (82°F)
30°C (86°F)
32°C (90°F)
Min temperature
15°C (59°F)
18°C (64°F)
19°C (66°F)
Monthly sun hours
271 hours
279 hours
294 hours
Monthly rainfall
116 mm (4.6 in)
109 mm (4.3 in)
108 mm (4.3 in)
Monthly rainy days
9 days
9 days
8 days
Weather conditions
pleasant
tolerable
tolerable
Climate in Arroyo Seco →

Is your destination not in the list? Have a look at all destinations in Santa Fe Province, in Argentina.

In our records: Argentina December extremes

Notable December records observed across cities in Argentina in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest December day in Argentina reached 48°C (118°F) in Santiago del Estero on December 19, 1995.

Popular cities in December

Day & night temperatures, rainfall and average weather in Santa Fe Province in December.

City Weather Day temp Night temp Rainfall
Rosario 30°C (86°F) 18°C (64°F) 110 mm (4.3 in)
Rafaela 31°C (88°F) 18°C (64°F) 131 mm (5.2 in)
Cayastá 31°C (88°F) 19°C (66°F) 136 mm (5.4 in)
San Lorenzo 30°C (86°F) 18°C (64°F) 114 mm (4.5 in)
Arroyo Seco 30°C (86°F) 18°C (64°F) 109 mm (4.3 in)
Roldán 30°C (86°F) 18°C (64°F) 112 mm (4.4 in)

Santa Fe Province weather in December: frequently asked questions

What is the weather like in Santa Fe Province, Argentina in December?

Expect unpleasant weather across Santa Fe Province, Argentina in December. The popular destination of Rosario averages 30°C (86°F) by day and 18°C (64°F) at night during this summer month.

What is the average temperature in Santa Fe Province, Argentina in December?

Rosario averages a daytime maximum of 30°C (86°F) in December, with overnight lows close to 18°C (64°F).

Does Santa Fe Province, Argentina get a lot of rain in December?

Santa Fe Province, Argentina sees substantial rainfall in December. Rosario typically averages about 110 mm (4.3 in), a mix of wet and dry days, but bring an umbrella.

Is December a Good Time to Visit Santa Fe Province, Argentina?

In our opinion, December may not be the ideal time to visit Santa Fe Province, Argentina due to the typically tolerable weather in Rosario.

Generally speaking, May, August and September provide perfect weather in Rosario. In contrast, January, February and December tend to have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in Santa Fe Province.

Weather and climate has detailed information for every country in the world. Are you going to Argentina? Get detailed historical weather averages for many cities in Argentina.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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