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Arona weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Arona?
For a warm holiday, the best week has been 18–24 August (Weather Index 98). Favourable start dates for a 7-day trip run from 25 July to 27 August. August is warmest (25°C), July is driest and May, June and July have the most sun.
- Warmest
- August 25°C
- Coolest
- January, February and March 17°C
- Driest
- July 0% rain-day chance
- Wettest
- November 17% rain-day chance
- Sunniest
- May, June and July 13 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in Arona
Arona historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 16.9 | 13.1 | 12.3 | 3.8 | 19.3 | 9.9 |
| February | 16.8 | 12.8 | 13.2 | 3.7 | 25.9 | 10.7 |
| March | 17.1 | 12.8 | 14.8 | 4.6 | 22.9 | 11.4 |
| April | 18.2 | 13.6 | 8.7 | 2.6 | 13.3 | 12.0 |
| May | 19.4 | 14.6 | 4.8 | 1.5 | 5.6 | 12.9 |
| June | 21.3 | 16.3 | 3.0 | 0.9 | 3.9 | 13.4 |
| July | 24.2 | 18.4 | 0.0 | 0.0 | 0.1 | 13.1 |
| August | 25.4 | 19.6 | 0.6 | 0.2 | 1.3 | 12.4 |
| September | 23.3 | 18.5 | 4.3 | 1.3 | 12.9 | 11.6 |
| October | 22.1 | 17.8 | 10.0 | 3.1 | 17.6 | 10.8 |
| November | 19.7 | 15.9 | 17.3 | 5.2 | 23.1 | 9.8 |
| December | 17.7 | 14.1 | 15.2 | 4.7 | 22.7 | 9.8 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.