Kenya's Indian Ocean coast is generally humid and hot all year round with Mombasa's annual daytime temperatures averaging between 27 and 31°C. There is the chance of rain on the coast throughout the year though it's wettest and hottest during the mid-March to late May rainy season - indeed, we'd recommend avoiding Kenya's coast at this time.
October to January (especially November) is usually considered the best time to visit Kenya's beaches as these months offer the best conditions for diving and snorkelling. If you want an opportunity to see and swim with whale sharks, then visit the Kenya coast between October and April - the best whale shark sightings occur between January and March.
For further advice on planning your Kenya beach holiday, simply enquire with one of our Africa Safari Experts.