The best time to travel in Senegal is between November and February, when it’s fairly cool and dry. It’s also the best time to spot migratory birds and mammals. The only downside of visits during that time are the harmattan winds that bring in Sahara dust to cloud vision and waters (not great for scuba diving). The best music festivals happen in November/December and from April to June. Low tourist season is from July to September – the time of the tropical rains.