Forecast for Swiss National Day weekend: Will it be rain or shine?
According to MeteoNews, the weather outlook for Swiss National Day on August 1, 2025, is promising, with sunny spells and light showers expected to dominate the forecast. However, it's important to note that precise forecasts for specific regions like Interlaken, Zurich, or Lugano on this date are not yet available.
Last weekend, the country experienced cooler temperatures, thunderstorms, and persistent heavy rain. But as we approach Swiss National Day, the weather is expected to improve significantly. By midnight on Tuesday, the cloudy and wet weather should have cleared up, making way for a brighter and drier week.
On Sunday afternoon, the Federal Office for the Environment issued a weather warning, but by National Day, it's unlikely to be completely dry in all of Switzerland's cantons. The forecast anticipates sunny spells for much of Switzerland on August 1, interspersed with only periodic light showers or drizzle.
In Basel, north-west Switzerland, only short episodes of drizzle are expected throughout the day. In contrast, Lugano, a city in the southern region of Ticino, might experience storms and light to moderate rain (up to 3mm) from 3pm.
Temperatures are expected to increase again from Tuesday. While only mountainous areas like Zermatt, Gotthard Pass, and Piz Bernina will continue to see sub-20C temperatures, cities like Zurich and Geneva are predicted to have highs of 23C and 25C respectively.
In Geneva, it's set to be warmer and sunnier, with long sunny spells, close to eight hours of sunshine, and some very light showers between midday and 6pm. Meanwhile, temperatures in Lugano, Ticino, are expected to rise to 27C.
It's worth noting that past social media posts hint at mixed weather conditions during Swiss National Day. Rain or stormy conditions are possible but not guaranteed. Some events in the past, such as those in Lugano, have faced stormy weather, causing rescheduling.
For detailed forecasts by specific regions on August 1, 2025, it's recommended to consult dedicated weather services closer to the date, as the existing data only provide broad seasonal tendencies, not exact predictions for that future date.
As we prepare for the celebrations on Swiss National Day, it seems that umbrellas might be needed in much of the country, with temperatures dropping to around 20C in most cantons and thunderstorms expected in several areas. But with sunny spells expected to displace the heavy rain in most cantons from Tuesday, the day could still turn out to be a beautiful celebration.
- While weather-forecasting services cannot provide specific predictions for August 1, 2025, in regions like Interlaken, Zurich, or Lugano, they do expect an improvement in weather conditions by Swiss National Day, with sunny spells and light showers predicted.
- In the days leading up to Swiss National Day, the weather is expected to stabilize, with the forecast indicating that the weather-weather outlook for much of Switzerland will be sunny spells interspersed with periodic light showers or drizzle, making the day suitable for celebrations, despite occasional rain or thunderstorms in some cantons.
