Osmer’s tomorrow tempo for 13 July 2026 points to a hot, mostly clear day, with afternoon cloudiness building later and temperatures reaching 31 degrees. The forecast also puts the UV index at 8, a very high level for people planning time outdoors.
At 08.40, the forecast described a marked African high-pressure system over the region. Osmer said that pattern would keep the weather stable and bring warm air for the period, but it also left room for afternoon instability, especially in the mountain area.
Osmer and the 13 July forecast
The morning should stay mostly clear, with partly cloudy conditions expected in the afternoon. Minimum temperatures were set between 23 and 25 degrees, while maximum temperatures were forecast between 29 and 31 degrees. For anyone organizing work, travel, or time outside, that means the warmest hours arrive under strong sun rather than after a cool start.
Osmer also forecast average offshore wind in the morning as variable at 3 to 6 knots, or 6 to 11 km/h. In the afternoon, the flow should turn southwest at 4 to 8 knots, or 7 to 15 km/h. The change is modest, but it matches the shift from a clearer morning to more cloud cover later in the day.
UV 8 and outdoor plans
The UV index of 8 is classified as very high. Osmer’s advice was direct: avoid the sun during the central hours of the day, wear sunglasses and a hat, use high-protection sunscreen, and seek shade when possible.
That leaves a practical split in the day. The forecast is broadly stable, but afternoon instability could still build over the mountain area, while the strongest exposure risk comes earlier, when the sun is highest and the air is already warm. People planning outdoor activity have the clearest window in the morning, before cloudiness increases and the UV level has already done its work.
