Argentina
Buenos Aires in January: weather & travel advice
This month's data profile
Strong month under the current formula
Buenos Aires in January is climatically well suited to family holidays and city breaks. The average daily high is around 28 °C. With about 10 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
77/100 · #7
Warmth
#1
Dryness
#12
Sun
#2
Published best categories: Family
Buenos Aires · JanuaryPhoto: David Berkowitz from New York, NY, USA · CC BY 2.0Climate facts
- Average high
- 28 °C
- Average low
- 21 °C
- Rainy days (est.)
- 10 rainy days (est.)
- Sun (est.)
- 9 h/day
- Humidity
- 68 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| December | 26 | 20 | 9 | 101 | 9.3 | 69 | 4.6 | 83 |
| January (selected) | 28 | 21 | 10 | 100 | 9.1 | 68 | 4.6 | 77 |
| February | 27 | 21 | 9 | 110 | 7.9 | 71 | 4.5 | 81 |
How do the previous and next months compare?
Baseline: January (77/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| December | +6 | -1.5 °C | -1.8 °C | -0.4 | +0.5 mm | +0.2 h | +0.2 % | +0.1 m/s |
| February | +4 | -0.9 °C | -0.4 °C | -0.4 | +9.3 mm | -1.2 h | +2.5 % | -0.1 m/s |
All twelve months in context

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Where to stay in Buenos Aires
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Useful next decisions
Frequently asked questions
How warm is Buenos Aires in January?
The average daily high is around 28 °C, with an average daily low of about 21 °C.
Does it rain a lot in Buenos Aires in January?
The curated estimate is about 10 rainy days per month, not a directly measured long-term average. Total precipitation averages around 100 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Buenos Aires?
By the climate score, March, April, November and December are the strongest months for Buenos Aires. January is not among them.