Climate - Posadas (Argentina)
Average weather, temperature, rainfall, sunshine hours
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Climate chart - Posadas (Argentina)
The climate of Posadas is subtropical, with very mild winters and very hot summers.
The city is located in northeastern Argentina, at 27 degrees south latitude, in the province of Misiones (the wettest in Argentina), on the banks of the Paraná River, beyond which lies the city of Encarnación, in Paraguay.
The rains are abundant and there is no dry season, however, they are a little more abundant in spring and autumn, and a little less in the austral winter. In fact, from June to August there are long periods without rain, of a week or two, although it depends on the years.
Even though the winter 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. In July 1975 and 2000, the temperature dropped to -3 °C (26.5 °F).
During the day it can get hot all year round, in fact, the heat records exceed 30 °C (86 °F) even in winter. Instead, from September to March, there can be heat waves, in which the temperature reaches 38/40 °C (100/104 °F). In January 2022, the temperature reached 42.5 °C (108.5 °F), and the average high was 37.7 °C (99.9 °F).
Best Time
The best time to visit Posadas goes from May to mid-August, being the one in which the risk of very hot days is lower. July and August are the least rainy months. It must be said that sometimes it can get cold, especially at night.
Posadas - Climate data
The average temperature of the coldest month (July) is of 17.2 °C (62.9 °F), that of the warmest month (January) is of 27.9 °C (82.3 °F). Here are the average temperatures.Posadas - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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| January | 22.1 | 33.8 | 27.9 | 72 | 93 | 82.3 |
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| February | 21.6 | 33.2 | 27.4 | 71 | 92 | 81.3 |
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| March | 20.3 | 31.8 | 26 | 69 | 89 | 78.9 |
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| April | 17.6 | 29 | 23.3 | 64 | 84 | 73.9 |
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| May | 14.1 | 24.8 | 19.4 | 57 | 77 | 67 |
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| June | 12.6 | 23.2 | 17.9 | 55 | 74 | 64.2 |
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| July | 11.4 | 23 | 17.2 | 53 | 73 | 62.9 |
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| August | 13 | 25.6 | 19.3 | 55 | 78 | 66.7 |
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| September | 14.8 | 27.1 | 20.9 | 59 | 81 | 69.7 |
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| October | 17.6 | 29.6 | 23.6 | 64 | 85 | 74.5 |
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| November | 18.8 | 31.4 | 25.1 | 66 | 89 | 77.2 |
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| December | 21 | 33.2 | 27.1 | 70 | 92 | 80.8 |
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| Year | 17 | 28.8 | 22.85 | 62.7 | 83.8 | 73 |
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Precipitation amounts to 1865 millimeters (73.4 inches) per year: it is therefore abundant. It ranges from 95 mm (3.7 in) in the driest month (August) to 225 mm (8.9 in) in the wettest one (October). Here is the average precipitation.Posadas - Average precipitation| Month | Millimeters | Inches | Days |
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| January | 165 | 6.5 | 10 |
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| February | 155 | 6.1 | 10 |
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| March | 145 | 5.7 | 9 |
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| April | 195 | 7.7 | 10 |
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| May | 140 | 5.5 | 8 |
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| June | 140 | 5.5 | 9 |
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| July | 105 | 4.1 | 9 |
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| August | 95 | 3.7 | 8 |
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| September | 145 | 5.7 | 11 |
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| October | 225 | 8.9 | 11 |
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| November | 180 | 7.1 | 10 |
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| December | 180 | 7.1 | 9 |
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| Year | 1865 | 73.4 | 115 |
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There are on average around 2245 sunshine hours per year. Here are the average hours of sunshine per day.
Posadas - Sunshine hours| Month | Average | Total |
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January | 8 | 250 | February | 7.5 | 215 | March | 5.5 | 170 | April | 6.5 | 195 | May | 6 | 185 | June | 5 | 145 | July | 5 | 160 | August | 5 | 160 | September | 3.5 | 110 | October | 6.5 | 200 | November | 7.5 | 220 | December | 7.5 | 230 | Year | 6.1 | 2245 |
Posadas - Weather by month
Based on the period 1991-2020
January, the hottest month of the year, is generally a very hot month. The average temperature is of 27.9 °C (82 °F), with a minimum of 22.1 °C (71.7 °F) and a maximum of 33.8 °C (92.8 °F).
On the coldest nights of the month, the temperature usually drops to around 17 °C (62.5 °F). However, it dropped to 11.4 °C (52.5 °F) in January 1992.
On the warmest days of the month, the temperature usually reaches around 37 °C (99 °F). However, it reached 40 °C (104 °F) in January 2006.
Precipitation amounts to 165 mm (6.5 in), distributed over 10 days.
The day lasts on average 13 hours and 35 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 67%.
The average wind speed is 10 kph (6 mph).
February is generally a warm to hot month. The average temperature is of 27.4 °C (81 °F), with a minimum of 21.6 °C (70.9 °F) and a maximum of 33.2 °C (91.7 °F).
On the coldest nights of the month, the temperature usually drops to around 16 °C (61 °F). However, it dropped to 11 °C (51.8 °F) in February 1991.
On the warmest days of the month, the temperature usually reaches around 36.5 °C (98 °F). However, it reached 39.5 °C (103.1 °F) in February 2005.
Precipitation amounts to 155 mm (6.1 in), distributed over 10 days.
The day lasts on average 13 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 69%.
The average wind speed is 10 kph (6 mph).
March is generally a warm to hot, muggy month. The average temperature is of 26.0 °C (79 °F), with a minimum of 20.3 °C (68.5 °F) and a maximum of 31.8 °C (89.3 °F).
On the coldest nights, the temperature usually drops to around 14.5 °C (58 °F). However, it dropped to 10 °C (50 °F) in March 1998.
On the warmest days, the temperature usually reaches around 36 °C (97 °F). However, it reached 39.5 °C (103.1 °F) in March 2005.
Precipitation amounts to 145 mm (5.7 in), distributed over 9 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is 9 kph (6 mph).
April is generally a warm to hot, muggy month. The average temperature is of 23.3 °C (74 °F), with a minimum of 17.6 °C (63.7 °F) and a maximum of 29 °C (84.2 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 10.5 °C (50.5 °F). However, it dropped to 6.3 °C (43.3 °F) in April 1999.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 34.5 °C (94 °F). However, it reached 36.4 °C (97.5 °F) in April 2004.
Precipitation amounts to 195 mm (7.7 in), distributed over 10 days.
The day lasts on average 11 hours and 25 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 9 kph (6 mph).
May is generally a warm month. The average temperature is of 19.4 °C (67 °F), with a minimum of 14.1 °C (57.3 °F) and a maximum of 24.8 °C (76.6 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 6.5 °C (43.5 °F). However, it dropped to 1.8 °C (35.2 °F) in May 2020.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 31 °C (88 °F). However, it reached 35 °C (95 °F) in May 2018.
Precipitation amounts to 140 mm (5.5 in), distributed over 8 days.
The day lasts on average 10 hours and 40 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 9 kph (6 mph).
June is generally a very mild month. The average temperature is of 17.9 °C (64 °F), with a minimum of 12.6 °C (54.7 °F) and a maximum of 23.2 °C (73.8 °F).
On the coldest nights, the temperature usually drops to around 4 °C (39 °F). However, it dropped to 0 °C (32 °F) in June 1993.
On the warmest days, the temperature usually reaches around 29.5 °C (85.5 °F). However, it reached 31.2 °C (88.2 °F) in June 2019.
Precipitation amounts to 140 mm (5.5 in), distributed over 9 days.
The day lasts on average 10 hours and 25 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 46% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
July, the coldest month of the year, is generally a very mild month. The average temperature is of 17.2 °C (63 °F), with a minimum of 11.4 °C (52.5 °F) and a maximum of 23 °C (73.3 °F).
On the coldest nights of the month, the temperature usually drops to around 2.5 °C (36 °F). However, it dropped to -3 °C (26.6 °F) in July 2000.
On the warmest days of the month, the temperature usually reaches around 30 °C (86 °F). However, it reached 32 °C (89.6 °F) in July 2001.
Precipitation amounts to 105 mm (4.1 in), distributed over 9 days.
The day lasts on average 10 hours and 35 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
August is generally a warm month. The average temperature is of 19.3 °C (67 °F), with a minimum of 13 °C (55.3 °F) and a maximum of 25.6 °C (78.1 °F).
On the coldest nights of the month, the temperature usually drops to around 4 °C (39.5 °F). However, it dropped to -1.3 °C (29.7 °F) in August 1991.
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92 °F). However, it reached 36 °C (96.8 °F) in August 1995.
Precipitation amounts to 95 mm (3.7 in), distributed over 8 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 66%.
The average wind speed is 11 kph (7 mph).
September is generally a warm month. The average temperature is of 20.9 °C (70 °F), with a minimum of 14.8 °C (58.7 °F) and a maximum of 27.1 °C (80.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 7 °C (44.5 °F). However, it dropped to 3.2 °C (37.8 °F) in September 2006.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 35 °C (95 °F). However, it reached 39.1 °C (102.4 °F) in September 2020.
Precipitation amounts to 145 mm (5.7 in), distributed over 11 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 31% of the time.
The average humidity is 66%.
The average wind speed is 11 kph (7 mph).
October is generally a warm to hot month. The average temperature is of 23.6 °C (74 °F), with a minimum of 17.6 °C (63.6 °F) and a maximum of 29.6 °C (85.3 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 11 °C (51.5 °F). However, it dropped to 5.5 °C (41.9 °F) in October 1999.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 36 °C (96.5 °F). However, it reached 40.6 °C (105.1 °F) in October 2020.
Precipitation amounts to 225 mm (8.9 in), distributed over 11 days.
The day lasts on average 12 hours and 50 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 68%.
The average wind speed is 11 kph (7 mph).
November is generally a warm to hot month. The average temperature is of 25.1 °C (77 °F), with a minimum of 18.8 °C (65.8 °F) and a maximum of 31.4 °C (88.5 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 12.5 °C (54.5 °F). However, it dropped to 6.7 °C (44.1 °F) in November 1992.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 36.5 °C (98 °F). However, it reached 40.2 °C (104.4 °F) in November 2020.
Precipitation amounts to 180 mm (7.1 in), distributed over 10 days.
The day lasts on average 13 hours and 30 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 63%.
The average wind speed is 11 kph (7 mph).
December is generally a warm to hot month. The average temperature is of 27.1 °C (81 °F), with a minimum of 21 °C (69.8 °F) and a maximum of 33.2 °C (91.8 °F).
On the coldest nights of the month, the temperature usually drops to around 15 °C (59 °F). However, it dropped to 10.8 °C (51.4 °F) in December 1992.
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99 °F). However, it reached 40.2 °C (104.4 °F) in December 2008.
Precipitation amounts to 180 mm (7.1 in), distributed over 9 days.
The day lasts on average 13 hours and 50 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
There are on average 7.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 65%.
The average wind speed is 10 kph (6 mph).
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