Horta Weather in September
Horta in September sees high daytime temperatures of 23°C (73°F) and nighttime lows of 21°C (70°F). Rainfall is fairly high this month at around 66 mm (2.6 in), so pack a rain jacket to stay dry.
Rainfall in Horta in September
Expect around 14 days of rain based on historical data, with 66 mm (2.6 in) average. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Horta in September
Horta has perfect weather in September, with days reaching 23°C (73°F) and nights cooling to 21°C (70°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 21°C (70°F) overnight, nights are warm enough to sit outside comfortably in light clothing.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Horta.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Horta's climate page.
Horta Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
23°C (73°F)
Chance of Rain
47%
Precipitation
66 mm (2.6 in)
Rainy days
14 days
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Horta typically stay consistent throughout September, with daily highs averaging around 23°C (73°F). Nights are pleasant, with lows around 20°C (68°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Horta in September
Browse day-by-day weather records for Horta spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Horta historical weather extremes in September
According to our 28 years of weather records for Horta, the following extremes were recorded between 1997 and 2025.
- The hottest September day on record in Horta reached 28°C (82°F) (September 12, 2018).
- The lowest daytime temperature in September was 17°C (63°F), recorded on September 30, 2015.
- Horta registered its coldest September night on September 25, 2002, with temperatures dropping to 14°C (57°F).
Best Places in Portugal in September
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
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tolerable
unpleasant
poor
What to Wear in Horta in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days.What To Do in Horta in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Horta's climate page.
See the full Horta climate overview or explore weather in Portugal.
