Bahrain Weather, climate and geography
June to October, hot and humid (42°C/108°F), December to April, mild (10-20°C/50-68°F). December through to March can be quite cool. Rainfall is slight and occurs mainly in winter.
The best time to visit Bahrain is between February to April and October to December when the sky is free from heat haze and the weather sunny without being oppressive. The times to avoid, other than the punishing mid-summer months, are Ramadan (when restaurants are closed during the day) and the two Eid holidays (when hotels are in high demand from Saudi visitors).