Weather in Viana do Castelo for September 2027
In general, the average temperature in Viana do Castelo at the beginning of September is 23 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 21.5 °C by the end of September.
Viana do Castelo experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 69.3 mm.
Is September a good time to visit Viana do Castelo? check out the best time to travel to Viana do Castelo page.
✨ Is September a good time to visit Viana do Castelo? – Ask the AI Weatherman
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Viana do Castelo Weather September
Temperatures trend during September in Viana do Castelo
September weather in Viana do Castelo day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 22° /14° | 2 mm | 6 | |
| 2 Sept. |  Sunny | 23° /14° | 0.3 mm | 6 | |
| 3 Sept. |  Light rain | 24° /15° | 3.3 mm | 6 | |
| 4 Sept. | Light rain shower | 25° /15° | 1.7 mm | 5 | |
| 5 Sept. | Light rain | 24° /15° | 3.4 mm | 6 | |
| 6 Sept. |  Thundery outbreaks possible | 22° /14° | 2.7 mm | 5 | |
| 7 Sept. | Patchy rain possible | 22° /15° | 1.3 mm | 6 | |
| 8 Sept. |  Patchy light rain with thunder | 21° /14° | 4 mm | 5 | |
| 9 Sept. |  Moderate or heavy rain shower | 21° /14° | 6.3 mm | 6 | |
| 10 Sept. | Patchy rain possible | 22° /15° | 2.1 mm | 6 | |
| 11 Sept. | Sunny | 23° /15° | 0 mm | 6 | |
| 12 Sept. | Sunny | 23° /15° | 0 mm | 6 | |
| 13 Sept. | Sunny | 24° /16° | 0 mm | 6 | |
| 14 Sept. | Sunny | 25° /16° | 0 mm | 6 | |
| 15 Sept. | Sunny | 23° /16° | 0 mm | 6 | |
| 16 Sept. | Patchy rain possible | 24° /15° | 2.1 mm | 6 | |
| 17 Sept. | Light rain | 23° /15° | 6.3 mm | 6 | |
| 18 Sept. | Patchy rain possible | 23° /15° | 2.3 mm | 6 | |
| 19 Sept. | Sunny | 23° /15° | 0 mm | 5 | |
| 20 Sept. | Light rain | 22° /16° | 2.5 mm | 5 | |
| 21 Sept. | Light rain | 22° /16° | 3.2 mm | 5 | |
| 22 Sept. | Sunny | 22° /14° | 0.6 mm | 5 | |
| 23 Sept. | Sunny | 22° /13° | 0 mm | 5.9 | |
| 24 Sept. | Patchy rain possible | 21° /14° | 1.1 mm | 5 | |
| 25 Sept. | Light rain | 22° /15° | 3.6 mm | 5 | |
| 26 Sept. | Light rain | 21° /14° | 4.4 mm | 4 | |
| 27 Sept. | Patchy rain possible | 20° /14° | 0.7 mm | 4 | |
| 28 Sept. | Patchy rain possible | 22° /14° | 1.1 mm | 5 | |
| 29 Sept. |  Moderate rain | 23° /15° | 12.7 mm | 5 | |
| 30 Sept. | Patchy rain possible | 23° /16° | 1.5 mm | 5 | |
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Viana do Castelo weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny | Patchy rain possible |
| Temperatures | 24°/15° | 22°/15° | 20°/14° |
| Rainfall | 39 mm | 69 mm | 208 mm |
| Wind | 20.3 km/h | 18.5 km/h | 19.2 km/h |
| Humidity | 76% | 71% | 76% |
| Rainy days | 4 days | 8 days | 14 days |
| Dry days | 27 days | 22 days | 17 days |
Planning a trip to Viana do Castelo? Discover the best time to visit
Viana do Castelo in September - FAQ
What are the expected maximum and minimum temperatures in Viana do Castelo during September?
How much rainfall should be expected in Viana do Castelo during September?
What are the typical wind conditions in Viana do Castelo during September?
September rainfall patterns in Viana do Castelo
UV exposure in Viana do Castelo during September
What to pack to Viana do Castelo in September?
Mild · highs around 22 °C, frequent showers
As you prepare for your trip to Viana do Castelo in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Viana do Castelo, during September, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
Where is Viana do Castelo?Get accurate weather forecasts for Viana do Castelo, located at latitude 41.693 and longitude -8.833. Stay updated with localized weather information tailored for Viana do Castelo.