מזג האוויר באוסטנדה בספטמבר

September is quieter than July but the crowd here is not a seasonal thing so much as a daily one. Coach groups come through from the Zeebrugge cruise berths, weekends bring Belgians in to shop, and a national monuments weekend in the middle of the month adds locals to the visitors. What regulars keep coming back to is the evening: the day trippers leave, the buildings are lit, and the centre becomes a different town to walk. So the advice is to stay the night rather than to pick a week. Our row gives 19.9C days over 14.1C nights and 64.4mm across 10.3 days. The record: humidity 76 percent, 9.3 hours of sun, a 21.7 kph wind and AQI 44.

Forum posters describe February across Belgium as similar to November - cold, wet and often bleak - with February specifically flagged as the month most likely to bring snow, though it rarely sticks around for more than a day or so. Posters are consistent that Belgium's weather generally runs genuinely unpredictable regardless of season, with June/July rated as the better overall visiting window compared to the depths of winter. Posters discussing nearby Ostend specifically in the neighboring shoulder-season month of March describe conditions as still mostly cold and rainy, with only the occasional genuinely nice day breaking through. Posters generally rate February as cold, damp and gray for Ostend, a beach visit here very much a summer rather than winter activity.

Forum posters call July-August the best weather months in Belgium overall, though they're candid the weather stays genuinely hard to predict - it might be 30C and sunny, or 15C and raining, sometimes within the same week. Posters note August specifically tends to run marginally warmer than July, with rain more likely to arrive as short, heavy bursts than sustained drizzle. Ostend itself is described as a popular, lively beach destination in good August weather, with beach festivals and fireworks part of the seasonal draw, and the sea staying warm enough for comfortable swimming - posters note this extends into early September for anyone visiting on the later side of the summer window.