, with mild, quite dry winters (from mid-May to mid-August) and hot, rainy summers (from December to February). In summer, the rains often occur in the form of thunderstorms.
The city is located in north-central Argentina, at 31 degrees south latitude, on the eastern edge of the Pampa, on the banks of the Salado del Norte River, which then flows into the Paraná south of the city. A short distance away is the city of Paraná, across the river of the same name, which flows a few kilometers to the east.
We are in an area where the waters of the rivers have created some lagoons over the centuries. The closest to Santa Fe is the Setúbal lagoon.
As a result of very heavy rains, the waters of the rivers can flood part of the city, as happened in April 2003 and March 2007.
is mild, there can sometimes be periods a bit cold, especially at night, when the temperature can drop to around freezing or a little below. This typically happens from late May to early September. At Sauce Viejo airport, the temperature dropped to -7 °C (19.5 °F) in July 2004 and to -5 °C (23 °F) in July 2010.
all year round, in fact, the heat records are around 30 °C (86 °F) even in winter, in July and August. On the other hand, from September to February, there can be heat waves, in which the temperature reaches or exceeds 38/40 °C (100/104 °F). In January 2022 it reached 41.9 °C (107.4 °F).
But the Pampero, the south wind, is able to interrupt the hot and muggy periods, bringing pleasant temperatures (and sometimes even very cool) for two or three days.
It is difficult to find the best time to visit Santa Fe, also because there can be sudden changes in temperature. Anyway, you can choose the period
, in which both temperature and rainfall are halfway between winter and summer.
Winter, from mid-May to mid-August, is the mildest and driest season of the year, but sometimes it can get cold, especially at night.
In spring, starting from mid-August, it can be very hot. Summer is the sunniest season, but it is hot and muggy, and thunderstorms can break out.
. Here are the average temperatures.
January, the hottest month of the year, is generally a warm to hot month. The average temperature is of
25.8 °C, with a minimum of
20.1 °C and a maximum of
31.5 °C.

On the coldest nights of the month, the temperature usually drops to around
13.5 °C.

On the warmest days of the month, the temperature usually reaches around
37.5 °C. However, it reached
41.7 °C in January 2006.

Precipitation amounts to
98.7 mm, distributed over 6 days.
The day lasts on average 13 hours and 55 minutes.

There are on average 9 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 66%.
The average wind speed is of
11 kph.
February is generally a warm to hot, muggy month. The average temperature is of
24.6 °C, with a minimum of
19.1 °C and a maximum of
30 °C.

On the coldest nights of the month, the temperature usually drops to around
12 °C.

On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
40.1 °C in February 2003.

Precipitation amounts to
117.5 mm, distributed over 7 days.
The day lasts on average 13 hours and 10 minutes.

There are on average 8.5 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of
10.7 kph.
March is generally a warm to hot, muggy month. The average temperature is of
23 °C, with a minimum of
17.6 °C and a maximum of
28.5 °C.

On the coldest nights of the month, the temperature usually drops to around
10 °C.

On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
37.7 °C in March 2001.

Precipitation amounts to
138.4 mm, distributed over 6 days.
The day lasts on average 12 hours and 10 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
10.3 kph.
April is generally a warm month. The average temperature is of
19.3 °C, with a minimum of
14 °C and a maximum of
24.6 °C.

On the coldest nights of the month, the temperature usually drops to around
5.5 °C.

On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
36 °C in April 2018.

Precipitation amounts to
127.9 mm, distributed over 7 days.
The day lasts on average 11 hours and 20 minutes.

There are on average 6.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
10.6 kph.
May is generally a very mild month. The average temperature is of
16 °C, with a minimum of
11 °C and a maximum of
21 °C.

On the coldest nights of the month, the temperature usually drops to around
2 °C.

On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
36 °C in May 1997.

Precipitation amounts to
52.1 mm, distributed over 4 days.
The day lasts on average 10 hours and 30 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
10.9 kph.
June is generally a mild month. The average temperature is of
13 °C, with a minimum of
7.9 °C and a maximum of
18 °C.

On the coldest nights of the month, the temperature usually drops to around
-1.5 °C.

On the warmest days of the month, the temperature usually reaches around
26 °C. However, it reached
30.9 °C in June 2015.

Precipitation amounts to
33.3 mm, distributed over 3 days.
The day lasts on average 10 hours and 5 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.

There are on average 5 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
11.8 kph.
July, the coldest month of the year, is generally a mild month. The average temperature is of
12.1 °C, with a minimum of
6.7 °C and a maximum of
17.5 °C.

On the coldest nights of the month, the temperature usually drops to around
-2.5 °C.

On the warmest days of the month, the temperature usually reaches around
27.5 °C. However, it reached
33.7 °C in July 1997.

Precipitation amounts to
25.4 mm, distributed over 2 days.
The day lasts on average 10 hours and 20 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
13.1 kph.
August is generally a mild month. The average temperature is of
14.3 °C, with a minimum of
8.3 °C and a maximum of
20.3 °C.

On the coldest nights of the month, the temperature usually drops to around
-0.5 °C.

On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
38.6 °C in August 2009.

Precipitation amounts to
32.2 mm, distributed over 3 days.
The day lasts on average 11 hours and 0 minutes.

There are on average 6.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 69%.
The average wind speed is of
14.6 kph.
September is generally a very mild month. The average temperature is of
16.6 °C, with a minimum of
10.6 °C and a maximum of
22.5 °C.

On the coldest nights of the month, the temperature usually drops to around
1.5 °C.

On the warmest days of the month, the temperature usually reaches around
32.5 °C. However, it reached
39 °C in September 2013.

Precipitation amounts to
49.4 mm, distributed over 4 days.
The day lasts on average 11 hours and 55 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 66%.
The average wind speed is of
14.9 kph.
October is generally a warm month. The average temperature is of
19.6 °C, with a minimum of
14 °C and a maximum of
25.2 °C.

On the coldest nights of the month, the temperature usually drops to around
5.5 °C.

On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
41 °C in October 2009.

Precipitation amounts to
114.8 mm, distributed over 7 days.
The day lasts on average 12 hours and 55 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 67%.
The average wind speed is of
14.7 kph.
November is generally a warm month. The average temperature is of
22.2 °C, with a minimum of
16.5 °C and a maximum of
28 °C.

On the coldest nights of the month, the temperature usually drops to around
9.5 °C.

On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
39 °C in November 2020.

Precipitation amounts to
143 mm, distributed over 7 days.
The day lasts on average 13 hours and 50 minutes.

There are on average 9 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 65%.
The average wind speed is of
14.2 kph.
December is generally a warm to hot month. The average temperature is of
24.4 °C, with a minimum of
18.7 °C and a maximum of
30.2 °C.

On the coldest nights of the month, the temperature usually drops to around
12 °C.

On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
41.5 °C in December 2013.

Precipitation amounts to
143.1 mm, distributed over 8 days.
The day lasts on average 14 hours and 10 minutes. So the days are long. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.

There are on average 8 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 65%.
The average wind speed is of
12.4 kph.