How many sunny days does Rosario have per year?

Rosario averages approximately 276 sunny days per year, based on historical climate data.

What is the air quality in Rosario?

Rosario has an annual PM2.5 concentration of 12.6 µg/m³, classified as "Fair" by WHO standards. Slightly above WHO targets. Sensitive individuals may notice effects.

Santa Fe

Rosario · Argentina

Name: Rosario, Argentina
Address: Rosario, AR

A city in Argentina.

Photo by Nico Chamorro Coscia on Unsplash

Large city

1.2M

199 km²

19:25 UTC-3

ARS

Explore on map →Climate twin →

Rosario, Argentina is a 1.2M-resident city with 276 sunny days and 6 frost days annually and an annual PM2.5 of 12.6 µg/m³. A city in Argentina.

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Climate

Feels-like °C

Dinner outside

Climate Lab · Rosario

Monthly climate metrics across temperature, precipitation, wind, and UV.

Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	33	32	30	26	21	19	20	23	24	28	30	32	26
Daily mean°C	27	25	25	19	15	13	13	15	17	20	24	25	20
Daily low°C	20	18	18	12	8	6	4	6	10	12	17	18	12
Thermal comfort
High feelsDaily high feels-like°C	35	36	34	28	23	20	21	24	26	30	33	35	29
Mean feelsDaily mean feels-like°C	30	29	27	20	13	12	10	13	16	20	26	27	20
Low feelsDaily low feels-like°C	20	16	17	9	2	-1	-3	0	4	6	15	16	8
Humidity
HumidityRelative humidity%	58	61	68	66	69	74	68	56	55	53	53	48	61
Dewpoint°C	17.9	16.0	17.2	11.8	8.4	8.0	4.4	5.6	7.6	9.4	13.1	14.7	11.2
Precipitation
Rainfallmm	107	46	149	61	14	10	13	28	11	53	62	44	596
Rain days≥1mm	8	7	9	6	4	2	3	3	3	7	5	5	62
Wind
Wind avgm/s	2.8	2.8	2.8	2.6	2.8	2.9	3.0	3.3	3.5	3.4	3.5	3.0	3.0
Wind gustsm/s	5.3	5.3	5.2	5.4	5.9	5.7	5.8	6.1	6.7	6.4	6.5	5.8	5.8
Sun & UV
Sunshinehrs/day	12.3	11.3	10.0	9.6	9.3	7.4	9.1	9.3	9.9	11.2	11.7	12.6	10.3
Clear skyindex	66%	69%	59%	67%	55%	56%	63%	64%	64%	62%	63%	70%	63%
UV indexmax avg	11.5	10.6	8.3	5.3	3.4	2.6	2.8	3.8	5.7	8.2	10.6	11.9	7.1

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Lifestyle Calendar · Rosario

Rosario offers a solid outdoor season. 2 months of the year are perfect for all activities. Dinner outside is comfortable 7/12 months — impressive, while lunch outside is comfortable 9/12 months — impressive.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

7/12

Dinner Outside

86Jan: 86% viability

84Feb: 84% viability

83Mar: 83% viability

72Apr: 72% viability

33May: 33% viability

29Jun: 29% viability

24Jul: 24% viability

37Aug: 37% viability

52Sep: 52% viability

68Oct: 68% viability

88Nov: 88% viability

88Dec: 88% viability

7/12

Dinner Outside

86Jan: 86% viability

84Feb: 84% viability

83Mar: 83% viability

72Apr: 72% viability

33May: 33% viability

29Jun: 29% viability

24Jul: 24% viability

37Aug: 37% viability

52Sep: 52% viability

68Oct: 68% viability

88Nov: 88% viability

88Dec: 88% viability

62%

Cold

9/12

Lunch Outside

54Jan: 54% viability

62Feb: 62% viability

63Mar: 63% viability

90Apr: 90% viability

90May: 90% viability

92Jun: 92% viability

90Jul: 90% viability

88Aug: 88% viability

87Sep: 87% viability

82Oct: 82% viability

78Nov: 78% viability

70Dec: 70% viability

9/12

Lunch Outside

54Jan: 54% viability

62Feb: 62% viability

63Mar: 63% viability

90Apr: 90% viability

90May: 90% viability

92Jun: 92% viability

90Jul: 90% viability

88Aug: 88% viability

87Sep: 87% viability

82Oct: 82% viability

78Nov: 78% viability

70Dec: 70% viability

79%

Heat

9/12

Walking

46Jan: 46% viability

58Feb: 58% viability

65Mar: 65% viability

98Apr: 98% viability

98May: 98% viability

99Jun: 99% viability

100Jul: 100% viability

100

98Aug: 98% viability

97Sep: 97% viability

90Oct: 90% viability

77Nov: 77% viability

62Dec: 62% viability

9/12

Walking

46Jan: 46% viability

58Feb: 58% viability

65Mar: 65% viability

98Apr: 98% viability

98May: 98% viability

99Jun: 99% viability

100Jul: 100% viability

100

98Aug: 98% viability

97Sep: 97% viability

90Oct: 90% viability

77Nov: 77% viability

62Dec: 62% viability

82%

Heat

7/12

Running

25Jan: 25% viability

37Feb: 37% viability

49Mar: 49% viability

91Apr: 91% viability

98May: 98% viability

99Jun: 99% viability

100Jul: 100% viability

100

97Aug: 97% viability

94Sep: 94% viability

81Oct: 81% viability

57Nov: 57% viability

40Dec: 40% viability

7/12

Running

25Jan: 25% viability

37Feb: 37% viability

49Mar: 49% viability

91Apr: 91% viability

98May: 98% viability

99Jun: 99% viability

100Jul: 100% viability

100

97Aug: 97% viability

94Sep: 94% viability

81Oct: 81% viability

57Nov: 57% viability

40Dec: 40% viability

72%

Heat

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Climate

Feels-like °C

Dinner outside

Climate Lab · Rosario

Monthly climate metrics across temperature, precipitation, wind, and UV.

Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	33	32	30	26	21	19	20	23	24	28	30	32	26
Daily mean°C	27	25	25	19	15	13	13	15	17	20	24	25	20
Daily low°C	20	18	18	12	8	6	4	6	10	12	17	18	12
Thermal comfort
High feelsDaily high feels-like°C	35	36	34	28	23	20	21	24	26	30	33	35	29
Mean feelsDaily mean feels-like°C	30	29	27	20	13	12	10	13	16	20	26	27	20
Low feelsDaily low feels-like°C	20	16	17	9	2	-1	-3	0	4	6	15	16	8
Humidity
HumidityRelative humidity%	58	61	68	66	69	74	68	56	55	53	53	48	61
Dewpoint°C	17.9	16.0	17.2	11.8	8.4	8.0	4.4	5.6	7.6	9.4	13.1	14.7	11.2
Precipitation
Rainfallmm	107	46	149	61	14	10	13	28	11	53	62	44	596
Rain days≥1mm	8	7	9	6	4	2	3	3	3	7	5	5	62
Wind
Wind avgm/s	2.8	2.8	2.8	2.6	2.8	2.9	3.0	3.3	3.5	3.4	3.5	3.0	3.0
Wind gustsm/s	5.3	5.3	5.2	5.4	5.9	5.7	5.8	6.1	6.7	6.4	6.5	5.8	5.8
Sun & UV
Sunshinehrs/day	12.3	11.3	10.0	9.6	9.3	7.4	9.1	9.3	9.9	11.2	11.7	12.6	10.3
Clear skyindex	66%	69%	59%	67%	55%	56%	63%	64%	64%	62%	63%	70%	63%
UV indexmax avg	11.5	10.6	8.3	5.3	3.4	2.6	2.8	3.8	5.7	8.2	10.6	11.9	7.1

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Lifestyle Calendar · Rosario

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

7/12

Dinner Outside

86Jan: 86% viability

84Feb: 84% viability

83Mar: 83% viability

72Apr: 72% viability

33May: 33% viability

29Jun: 29% viability

24Jul: 24% viability

37Aug: 37% viability

52Sep: 52% viability

68Oct: 68% viability

88Nov: 88% viability

88Dec: 88% viability

7/12

Dinner Outside

86Jan: 86% viability

84Feb: 84% viability

83Mar: 83% viability

72Apr: 72% viability

33May: 33% viability

29Jun: 29% viability

24Jul: 24% viability

37Aug: 37% viability

52Sep: 52% viability

68Oct: 68% viability

88Nov: 88% viability

88Dec: 88% viability

62%

Cold

9/12

Lunch Outside

54Jan: 54% viability

62Feb: 62% viability

63Mar: 63% viability

90Apr: 90% viability

90May: 90% viability

92Jun: 92% viability

90Jul: 90% viability

88Aug: 88% viability

87Sep: 87% viability

82Oct: 82% viability

78Nov: 78% viability

70Dec: 70% viability

9/12

Lunch Outside

54Jan: 54% viability

62Feb: 62% viability

63Mar: 63% viability

90Apr: 90% viability

90May: 90% viability

92Jun: 92% viability

90Jul: 90% viability

88Aug: 88% viability

87Sep: 87% viability

82Oct: 82% viability

78Nov: 78% viability

70Dec: 70% viability

79%

Heat

9/12

Walking

46Jan: 46% viability

58Feb: 58% viability

65Mar: 65% viability

98Apr: 98% viability

98May: 98% viability

99Jun: 99% viability

100Jul: 100% viability

100

98Aug: 98% viability

97Sep: 97% viability

90Oct: 90% viability

77Nov: 77% viability

62Dec: 62% viability

9/12

Walking

46Jan: 46% viability

58Feb: 58% viability

65Mar: 65% viability

98Apr: 98% viability

98May: 98% viability

99Jun: 99% viability

100Jul: 100% viability

100

98Aug: 98% viability

97Sep: 97% viability

90Oct: 90% viability

77Nov: 77% viability

62Dec: 62% viability

82%

Heat

7/12

Running

25Jan: 25% viability

37Feb: 37% viability

49Mar: 49% viability

91Apr: 91% viability

98May: 98% viability

99Jun: 99% viability

100Jul: 100% viability

100

97Aug: 97% viability

94Sep: 94% viability

81Oct: 81% viability

57Nov: 57% viability

40Dec: 40% viability

7/12

Running

25Jan: 25% viability

37Feb: 37% viability

49Mar: 49% viability

91Apr: 91% viability

98May: 98% viability

99Jun: 99% viability

100Jul: 100% viability

100

97Aug: 97% viability

94Sep: 94% viability

81Oct: 81% viability

57Nov: 57% viability

40Dec: 40% viability

72%

Heat

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Rosario · Argentina

Climate

Climate Lab · Rosario

Lifestyle Calendar · Rosario

Climate

Climate Lab · Rosario

Lifestyle Calendar · Rosario

Air Quality Profile

Air Quality Profile

Who thrives in Rosario

Frequently asked about Rosario

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