Climate and monthly weather forecastRosario, Uruguay
Climate and monthly weather forecast
Weather in January
January, the same as December, is another warm summer month in Rosario, Uruguay, with an average temperature ranging between max 27.2°C (81°F) and min 21.3°C (70.3°F). January tends to be the warmest month, with temperatures averaging a daily high of 27.2°C (81°F) and a low of 21.3°C (70.3°F). For most parts of January, the heat index is evaluated at 29°C (84.2°F). Weather in January »Weather in February
February, the last month of the summer in Rosario, is another warm month, with an average temperature fluctuating between 21.2°C (70.2°F) and 26.2°C (79.2°F). The commencement of February brings an average high-temperature of a still moderately hot 26.2°C (79.2°F), marking an inconsequential divergence from January. Weather in February »Weather in March
March, the first month of the autumn in Rosario, is also a moderately hot month, with temperature in the range of an average low of 19.1°C (66.4°F) and an average high of 23.7°C (74.7°F). The transition from February to March sees average high-temperatures adjusting to a still warm 23.7°C (74.7°F), from a not significantly different 26.2°C (79.2°F). Weather in March »Weather in April
April, the same as March, in Rosario, Uruguay, is another pleasant autumn month, with an average temperature ranging between min 16.7°C (62.1°F) and max 20.9°C (69.6°F). April experiences an average high-temperature of an agreeable 20.9°C (69.6°F), barely different from March's 23.7°C (74.7°F). Weather in April »Weather in May
The last month of the autumn, May, is another refreshing month in Rosario, Uruguay, with an average temperature ranging between min 13.9°C (57°F) and max 17.6°C (63.7°F). The advent of May brings a slight shift in average high-temperature, moving from a pleasant 20.9°C (69.6°F) in April to a comfortable 17.6°C (63.7°F). Weather in May »Weather in June
June, the first month of the winter in Rosario, is still a mild month, with an average temperature varying between 14.5°C (58.1°F) and 11°C (51.8°F). Rosario experiences a moderate temperature shift at the start of June, with average high-temperatures adjusting a bit from 17.6°C (63.7°F) in May to a still refreshing 14.5°C (58.1°F). Weather in June »Weather in July
July, the same as June, in Rosario, Uruguay, is another mild winter month, with an average temperature ranging between max 13.1°C (55.6°F) and min 9.6°C (49.3°F). During the coldest month, July, temperatures average a high of 13.1°C (55.6°F) and a low of 9.6°C (49.3°F). Weather in July »Weather in August
August, the last month of the winter in Rosario, is also a moderate month, with temperature in the range of an average low of 10.4°C (50.7°F) and an average high of 14.4°C (57.9°F). Rosario experiences a subtle adjustment in high-temperatures to a still mild 14.4°C (57.9°F) with the onset of August, maintaining near parity with July's 13.1°C (55.6°F). Weather in August »Weather in September
The first month of the spring, September, is still a refreshing month in Rosario, Uruguay, with an average temperature varying between 11.5°C (52.7°F) and 15.9°C (60.6°F). The shift into September records an average high-temperature of a still moderate 15.9°C (60.6°F), subtly varied from August's 14.4°C (57.9°F). Weather in September »Weather in October
October is a refreshing spring month in Rosario, Uruguay, with an average temperature ranging between max 18.6°C (65.5°F) and min 13.7°C (56.7°F). The commencement of October introduces an average high-temperature of an enjoyable 18.6°C (65.5°F), closely mirroring the preceding month. Weather in October »Weather in November
The last month of the spring, November, is an agreeable month in Rosario, Uruguay, with an average temperature fluctuating between 16.5°C (61.7°F) and 22°C (71.6°F). In Rosario, stepping into November brings a gentle temperature nudge, moving slightly up from October's refreshing 18.6°C (65.5°F) to a pleasant 22°C (71.6°F). Weather in November »Weather in December
The first month of the summer, December, is a warm month in Rosario, Uruguay, with an average temperature ranging between min 19.4°C (66.9°F) and max 25.3°C (77.5°F). The start of December brings a subtle rise in the average high-temperature, moving from a pleasant 22°C (71.6°F) in November to a warm 25.3°C (77.5°F). Weather in December »Updated: Jun 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month when Rosario experiences its warmest temperatures, averaging a high of 27.2°C (81°F) and a low of 21.3°C (70.3°F).
With an average relative humidity of 66%, January is the least humid month.
Throughout the year, there are 114.7 rainfall days, and 678mm (26.69") of precipitation is accumulated.
The months with the highest UV index are January through March, November and December, with an average maximum UV index of 6.
The month with the least rainfall is May, when the rain falls for 8.6 days and typically collects 43mm (1.69") of precipitation.
The month with the shortest days is June, with an average of 9h and 54min of daylight.
June has the least sunshine of the year in Rosario, with an average of 6h of sunshine.
Rosario's July weather reaches an average high of 13.1°C (55.6°F) and an average low of 9.6°C (49.3°F), making it the coldest month.
With an average maximum UV index of 3, July is the month with the lowest UV index.
With an average relative humidity of 78%, September is the most humid month.
The month with the most rainfall is November, when the rain falls for 10.3 days and typically aggregates up to 69mm (2.72") of precipitation.
With an average of 14h and 24min of daylight, December has the longest days of the year.
Rosario does not observe Daylight Saving Time (DST). -03 timezone is used over the entire year.
The month with the most sunshine is December, with an average of 11.1h of sunshine.
Average temperature
Rosario, Uruguay
The warmest month (with the highest average high temperature) is January (27.2°C).
The month with the lowest average high temperature is July (13.1°C).
The month with the highest average low temperature is January (21.3°C).
The coldest month (with the lowest average low temperature) is July (9.6°C).
Average pressure
Rosario, Uruguay
- Average pressure in January:
1011.9mbar - Average pressure in February:
1012.5mbar - Average pressure in March:
1014.8mbar - Average pressure in April:
1016.6mbar - Average pressure in May:
1017.8mbar - Average pressure in June:
1018mbar
- Average pressure in July:
1019.1mbar - Average pressure in August:
1018.6mbar - Average pressure in September:
1017.9mbar - Average pressure in October:
1015.6mbar - Average pressure in November:
1013.1mbar - Average pressure in December:
1011.1mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).
Average wind speed
Rosario, Uruguay
- Average wind speed in January:
19.1km/h - Average wind speed in February:
18.8km/h - Average wind speed in March:
18.7km/h - Average wind speed in April:
19.1km/h - Average wind speed in May:
19.4km/h - Average wind speed in June:
20.7km/h
- Average wind speed in July:
20.7km/h - Average wind speed in August:
20.1km/h - Average wind speed in September:
21.1km/h - Average wind speed in October:
20.1km/h - Average wind speed in November:
19.3km/h - Average wind speed in December:
18.1km/h
The windiest month (with the highest average wind speed) is September (21.1km/h).
The calmest month (with the lowest average wind speed) is December (18.1km/h).
Average humidity
Rosario, Uruguay
The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is January (66%).
Average rainfall
Rosario, Uruguay
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is May (43mm).
Average rainfall days
Rosario, Uruguay
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
11 days - Average rainfall days in April:
9.6 days - Average rainfall days in May:
8.6 days - Average rainfall days in June:
8.2 days
- Average rainfall days in July:
9.5 days - Average rainfall days in August:
8.3 days - Average rainfall days in September:
9 days - Average rainfall days in October:
10.8 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
10 days
The month with the highest number of rainy days is March (11 days).
The month with the least rainy days is June (8.2 days).
Average daylight / Average sunshine
Rosario, Uruguay
- Average daylight in January:
14h and 6min - Average daylight in February:
13h and 18min - Average daylight in March:
12h and 18min - Average daylight in April:
11h and 12min - Average daylight in May:
10h and 18min - Average daylight in June:
9h and 54min
- Average daylight in July:
10h and 6min - Average daylight in August:
10h and 54min - Average daylight in September:
11h and 54min - Average daylight in October:
13h and 0min - Average daylight in November:
13h and 54min - Average daylight in December:
14h and 24min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in January:
10h and 42min - Average sunshine in February:
9h and 0min - Average sunshine in March:
8h and 48min - Average sunshine in April:
8h and 18min - Average sunshine in May:
6h and 36min - Average sunshine in June:
6h and 0min
- Average sunshine in July:
6h and 24min - Average sunshine in August:
7h and 48min - Average sunshine in September:
7h and 36min - Average sunshine in October:
8h and 24min - Average sunshine in November:
10h and 24min - Average sunshine in December:
11h and 6min
The month with the most sunshine is December (Average sunshine: 11h and 6min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).
Average sunshine days
Rosario, Uruguay
- Average sunshine days in January:
20.3 days - Average sunshine days in February:
16.6 days - Average sunshine days in March:
19.1 days - Average sunshine days in April:
19.3 days - Average sunshine days in May:
20.2 days - Average sunshine days in June:
20.3 days
- Average sunshine days in July:
20.3 days - Average sunshine days in August:
21.3 days - Average sunshine days in September:
19.4 days - Average sunshine days in October:
17.8 days - Average sunshine days in November:
17.9 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is August (21.3 days).
The month with the least sunshine days is February (16.6 days).
Average UV index
Rosario, Uruguay
The months with the highest UV index are January, February, March, November and December (UV index 6).
The month with the lowest UV index is July (UV index 3).
Average cloud cover
Rosario, Uruguay
The month with the most cloud cover is July (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility
Rosario, Uruguay
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
