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September in Horta brings high temperatures, with daytime highs of 26°C (79°F) and nights around 24°C (75°F). Quite a bit of rainfall is expected, around 89 mm (3.5 in), so pack an umbrella.
So this is a great month to visit if you prefer dry days with pleasant temperatures.
Pick a month to see the average temperature, rainfall and sunshine in Horta - and find the best time to visit.
Browse day-by-day weather records for Horta spanning 21 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 19 years of weather observations in Horta between 2006 and 2025, these are the recorded extremes.
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With water temperatures around 23°C (73°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Bring sunglasses since you'll have some sunny periods throughout the month
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Horta climate overview or explore weather in Portugal.
Where to go in September - average daytime high across popular destinations.
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