Argentina
Best time to visit Buenos Aires
Based on 12 years of real historical weather data (2015–2026). Sunshine hours, rainfall, and temperature — week by week.
Planning a trip, an event, or a party in Buenos Aires? Here's what to expect. Summers here run warm, and winters are cooler. For the best odds of good weather, aim for October, November and April. Days run warm, with up to 10.2h of sunshine and some rain.
Month-by-month weather
Buenos Aires in January runs hot, averaging 28.3°C.
Buenos Aires in February runs hot, averaging 27.9°C.
Buenos Aires in March runs warm, averaging 24.8°C.
Buenos Aires in April runs warm, averaging 21.6°C.
Buenos Aires in May runs mild, averaging 17.2°C.
Buenos Aires in June runs cool, averaging 14.7°C.
Buenos Aires in July runs cool, averaging 13.8°C.
Buenos Aires in August runs mild, averaging 15.9°C.
Buenos Aires in September runs mild, averaging 18.1°C.
Buenos Aires in October runs warm, averaging 21.1°C.
Buenos Aires in November runs warm, averaging 24.9°C.
Buenos Aires in December runs hot, averaging 27.5°C.
Frequently asked questions
What is the best time to visit Buenos Aires?
If you're planning a trip, wedding, or outdoor event in Buenos Aires, aim for October, November and April — Days run warm, with up to 10.2h of sunshine and some rain. This is based on 12 years of real historical weather data (2015–2026), not a single forecast.
What is the weather like in Buenos Aires in October?
If you visit Buenos Aires in October, expect warm days around 21.1°C You'll get around 10.2h of sunshine per day and 2.7mm of rain — some rain.
What is the hottest month in Buenos Aires?
January is typically the hottest month, running hot — good to know if you're planning something outdoors and want to avoid the peak heat.
What is the driest month in Buenos Aires?
June is your safest bet if you want to avoid rain, averaging only 1.8mm per day. March is the wettest, at 4.7mm per day — worth planning around if you're hosting anything outdoors.
All weeks ranked by weather score
| Week | Dates | Midday temp | Range | Sun / day | Rain / day | Score |
|---|---|---|---|---|---|---|
| W44 | Oct 28–Nov 3 | 21.7°C | 9.8° → 25.2° | 10.4h | 2.5mm | 87 |
| W49 | Dec 2–8 | 26.5°C | 14.4° → 30.7° | 12.9h | 0.7mm | 87 |
| W40 | Sep 30–Oct 6 | 19.6°C | 7.7° → 24.5° | 10.5h | 1.5mm | 86 |
| W42 | Oct 14–20 | 21.1°C | 10.3° → 24.7° | 10.0h | 2.3mm | 86 |
| W45 | Nov 4–10 | 23.6°C | 13.6° → 27.1° | 11.2h | 2.3mm | 85 |
| W37 | Sep 9–15 | 17.9°C | 7.4° → 20.8° | 9.4h | 1.2mm | 83 |
| W38 | Sep 16–22 | 19.1°C | 7.8° → 23.2° | 9.7h | 1.7mm | 83 |
| W47 | Nov 18–24 | 25.1°C | 12.2° → 29.6° | 11.7h | 2.6mm | 83 |
| W16 | Apr 15–21 | 21.5°C | 11.3° → 24.2° | 8.4h | 2.5mm | 82 |
| W41 | Oct 7–13 | 20.5°C | 9.6° → 24.8° | 10.0h | 2.8mm | 82 |
| W9 | Feb 26–Mar 3 | 27.1°C | 16.7° → 30.1° | 10.7h | 1.9mm | 80 |
| W13 | Mar 25–31 | 23.7°C | 13.5° → 26.6° | 10.2h | 3.3mm | 80 |
| W14 | Apr 1–7 | 23.1°C | 12.8° → 26.3° | 9.3h | 3.3mm | 80 |
| W46 | Nov 11–17 | 25.4°C | 12.9° → 29.5° | 11.8h | 3.2mm | 79 |
| W1 | Jan 1–7 | 27.6°C | 16.7° → 30.4° | 12.5h | 2.2mm | 78 |
| W8 | Feb 19–25 | 27.8°C | 16.4° → 30.9° | 11.4h | 1.8mm | 78 |
| W15 | Apr 8–14 | 21.5°C | 11.2° → 25° | 8.7h | 3.7mm | 78 |
| W43 | Oct 21–27 | 22.5°C | 10.5° → 27° | 9.9h | 4.4mm | 78 |
| W39 | Sep 23–29 | 18.9°C | 8.7° → 22.3° | 8.9h | 2.6mm | 77 |
| W4 | Jan 22–28 | 28.1°C | 17.6° → 31.4° | 12.2h | 2.2mm | 76 |
| W18 | Apr 29–May 5 | 19.3°C | 8.7° → 22° | 7.9h | 2.4mm | 76 |
| W23 | Jun 3–9 | 15.6°C | 5.1° → 18.9° | 8.1h | 0.6mm | 76 |
| W48 | Nov 25–Dec 1 | 25.4°C | 14.6° → 28.3° | 11.7h | 3.4mm | 76 |
| W7 | Feb 12–18 | 27.2°C | 15.3° → 31.4° | 10.9h | 3.0mm | 75 |
| W52 | Dec 23–29 | 28.8°C | 17° → 32.4° | 12.8h | 2.2mm | 75 |
| W5 | Jan 29–Feb 4 | 28.4°C | 16.8° → 32.2° | 12.2h | 2.5mm | 74 |
| W2 | Jan 8–14 | 28.7°C | 17.3° → 31.7° | 12.0h | 2.6mm | 73 |
| W12 | Mar 18–24 | 24.1°C | 13.9° → 27.5° | 10.3h | 4.9mm | 73 |
| W17 | Apr 22–28 | 20.4°C | 10.7° → 23.2° | 8.0h | 3.9mm | 73 |
| W50 | Dec 9–15 | 28.1°C | 15.6° → 32.2° | 12.1h | 3.2mm | 73 |
| W51 | Dec 16–22 | 26.5°C | 14.6° → 30.1° | 11.9h | 3.6mm | 73 |
| W21 | May 20–26 | 16.5°C | 6° → 19.2° | 7.4h | 1.7mm | 72 |
| W31 | Jul 29–Aug 4 | 15.8°C | 4.9° → 20.2° | 8.2h | 1.8mm | 72 |
| W20 | May 13–19 | 17.1°C | 7.6° → 20° | 8.1h | 2.6mm | 71 |
| W29 | Jul 15–21 | 14.4°C | 3.1° → 18.6° | 8.3h | 1.5mm | 71 |
| W3 | Jan 15–21 | 28.6°C | 17.9° → 31.6° | 12.1h | 3.1mm | 70 |
| W32 | Aug 5–11 | 15.3°C | 5.3° → 18.5° | 7.8h | 1.9mm | 69 |
| W35 | Aug 26–Sep 1 | 17.2°C | 6.4° → 20.8° | 8.2h | 3.2mm | 69 |
| W6 | Feb 5–11 | 28.8°C | 18° → 32.1° | 11.6h | 3.6mm | 68 |
| W11 | Mar 11–17 | 24.9°C | 15.3° → 27.9° | 9.6h | 5.5mm | 68 |
| W22 | May 27–Jun 2 | 15.2°C | 5.8° → 18.3° | 7.0h | 1.7mm | 68 |
| W33 | Aug 12–18 | 15.6°C | 4.6° → 19.2° | 8.0h | 2.2mm | 68 |
| W10 | Mar 4–10 | 26.6°C | 16.2° → 29.9° | 10.6h | 5.0mm | 67 |
| W25 | Jun 17–23 | 14.7°C | 4.7° → 17.8° | 7.5h | 1.8mm | 67 |
| W34 | Aug 19–25 | 15.4°C | 4.4° → 18.6° | 7.8h | 2.5mm | 67 |
| W24 | Jun 10–16 | 14.7°C | 4.6° → 18° | 7.5h | 2.4mm | 66 |
| W36 | Sep 2–8 | 16.3°C | 5.4° → 20.3° | 8.6h | 3.5mm | 66 |
| W28 | Jul 8–14 | 13.2°C | 3.6° → 16.2° | 7.4h | 1.9mm | 64 |
| W26 | Jun 24–30 | 13.9°C | 4.4° → 16.7° | 7.2h | 2.2mm | 63 |
| W19 | May 6–12 | 17.9°C | 8.5° → 20.7° | 7.6h | 4.6mm | 62 |
| W27 | Jul 1–7 | 13.3°C | 3.5° → 17.1° | 7.2h | 2.2mm | 62 |
| W30 | Jul 22–28 | 14.4°C | 4.5° → 17.8° | 6.9h | 3.0mm | 59 |
Nail down the right dates for Buenos Aires
Compare individual weeks, see year-by-year variation, and download the data as Excel — everything you need to plan a trip, wedding, or event.
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