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Setúbal weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Setúbal?
For a warm holiday, the best week has been 21–27 August (Weather Index 98). Favourable start dates for a 7-day trip run from 1 July to 5 September. July and August are warmest (28°C), August is driest and June and July have the most sun.
- Warmest
- July and August 28°C
- Coolest
- January 15°C
- Driest
- August 1% rain-day chance
- Wettest
- April 34% rain-day chance
- Sunniest
- June and July 14 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 Setúbal
Setúbal 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 | 15.3 | 9.1 | 24.5 | 7.6 | 56.5 | 7.9 |
| February | 16.6 | 9.8 | 21.8 | 6.1 | 47.0 | 8.8 |
| March | 17.5 | 10.5 | 32.9 | 10.2 | 83.1 | 10.1 |
| April | 19.7 | 12.3 | 34.3 | 10.3 | 55.2 | 11.7 |
| May | 22.9 | 14.3 | 13.2 | 4.1 | 35.8 | 12.8 |
| June | 25.3 | 16.4 | 9.3 | 2.8 | 7.3 | 13.8 |
| July | 27.8 | 17.8 | 1.9 | 0.6 | 1.7 | 13.6 |
| August | 28.4 | 18.0 | 0.6 | 0.2 | 0.9 | 12.7 |
| September | 26.0 | 17.0 | 10.7 | 3.2 | 18.9 | 11.4 |
| October | 23.2 | 15.5 | 23.9 | 7.4 | 56.5 | 9.4 |
| November | 18.3 | 12.3 | 29.7 | 8.9 | 67.2 | 8.0 |
| December | 16.2 | 10.2 | 25.5 | 7.9 | 66.3 | 7.8 |
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.