Portugal
Porto Santo in September: weather, sea & travel advice
This month's data profile
Sea conditions lead
Porto Santo in September is climatically well suited to city breaks, beach holidays, family holidays and active holidays and hiking. The average daily high is around 23 °C, and the sea is about 23 °C. With about 3 rainy days it is very dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
92/100 · #1
Warmth
#1
Dryness
#5
Sun
#6
Sea warmth
#1
Published best categories: Overall, Beach, City break, Family
Porto Santo · SeptemberPhoto: Hedwig Storch · CC BY-SA 3.0Climate facts
- Average high
- 23 °C
- Average low
- 22 °C
- Sea
- 23 °C
- Rainy days (est.)
- 3 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 79 %
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 | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| August | 23 | 22 | 1 | 5 | 7.8 | 82 | 5.1 | 23 | 91 |
| September (selected) | 23 | 22 | 3 | 13 | 6.7 | 79 | 4.6 | 23 | 92 |
| October | 22 | 21 | 7 | 35 | 5.0 | 78 | 5.0 | 23 | 84 |
How do the previous and next months compare?
Baseline: September (92/100)
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 | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| August | -1 | -0.2 °C | -0.1 °C | -2.2 | -7.7 mm | +1.1 h | +3.4 % | +0.5 m/s | -0.4 °C |
| October | -8 | -0.9 °C | -0.9 °C | +4.5 | +21.4 mm | -1.7 h | -0.1 % | +0.4 m/s | -0.8 °C |
All twelve months in context
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Frequently asked questions
How warm is Porto Santo in September?
The average daily high is around 23 °C, with an average daily low of about 22 °C.
Can you swim in Porto Santo in September?
The sea is about 23 °C (swimmable).
Does it rain a lot in Porto Santo in September?
The curated estimate is about 3 rainy days per month, not a directly measured long-term average. Total precipitation averages around 13 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Porto Santo?
By the climate score, July, August, September and October are the strongest months for Porto Santo. For a beach trip: July, August, September and October. September is one of them.