Pula weather in September

The sea is not what ends the season here. Regulars say it barely cools from August and put it near 22C - our row has 24.1C - so swimming holds up all month, and after the first week the crowds are gone. What closes is the town: by the middle and end of September bars and restaurants start shutting, and around the 20th the sun beds come in. Weather is a lottery within that, one week sunny and the next a washout. Our 145.3mm falls across only 10.2 days, fourteen millimetres apiece, so the rain when it comes is a storm rather than a grey spell. The record: 24.8C days over 16.4C nights, 10 hours of sun, a 14.9 kph wind and AQI 48.

Forum posters describe June as splitting roughly in two: the first half stays pleasant for sightseeing with occasional rain that never lingers long, while the back half sees temperatures climb into the mid-to-high 20sC and genuinely warm, t-shirt-and-swimming conditions take over. Posters call June hot but not the stifling heat of full July/August, making it a favorite window for visitors who want good weather without peak-season crowds - several repeat visitors describe consistently excellent June weather across multiple trips, apart from the odd rainy day. That said, posters note real year-to-year variability exists even this time of year, with one comparison of different years finding one May sweltering hot and another notably rainy - so June isn't entirely immune to the same unpredictability, just generally favored.