The Gràcia Festivals 2026 in Barcelona are predicted to be marked by heat and humidity for most of the week. According to the current weather forecast, the initial part of the festival, starting on Saturday, August 15th, will experience high temperatures.
On Sunday, August 16th, highs of 34 degrees Celsius and nighttime lows of 25 degrees are expected, with a chance of isolated afternoon showers. Monday, August 17th, and Tuesday, August 18th, will continue with high temperatures, with highs around 33 degrees and lows of 26, although Tuesday might see some light rain in the morning.
The heat could intensify on Wednesday, August 19th, coinciding with the awards ceremony for the best decorated streets, with highs forecast at 34 degrees and lows at 26. From Thursday, August 20th, the forecast indicates an increase in instability with moderate rain probability.
Friday, August 21st, the last day of the festival, is expected to bring a more significant change with a high probability of precipitation and thunderstorms, and a drop in nighttime temperatures to 21 degrees.
These weather conditions may influence mobility and the schedule of outdoor activities during the festivals.




