Generally, the best time to visit the delta is from July to September or October, when the water levels are high and the weather is dry.
Tracks can get extremely muddy and trails are often washed out during and after the rains. From January to March, the Moremi Game Reserve can be inaccessible, even with a state-of-the-art 4WD. Bear in mind that several lodges close down for part or all of the rainy season, but others revel in the abundant birdlife.
Mosquitoes are prevalent, especially in the wet season (November to March).