Starting September 1st, the price of a liter of diesel in Guadeloupe will increase by 10 francs, reaching 180.7 F. In contrast, the price of a liter of gasoline will see a slight decrease, dropping to 179.4 F. These rates, published in an official decree, reflect recent market fluctuations. The T13 gas cylinder remains at 4,363 F, unchanged since last month.