Obuasi has a semi-equatorial climate with two rainy seasons and a mean annual rainfall between 125mm and 175mm. The average annual temperature in Obuasi is 26.5 °C with highs of 30 °C and lows of 23 °C. Relative humidity is around 75% – 80% in the wet season. Summers in Obuasi are wet, while the winters months tend to be dry. The climate around Obuasi is Aw Tropical savanna climate in the Köppen-Geiger climate classification. Obuasi's yearly precipitation averages 1,450 mm.  Obuasi is also noted for its healthcare facilities, such as the AGA Hospital owned by the Anglo Gold corporation, and also for a private health facility, St. Jude Hospital, owned by Dr George Owusu-Asiedu. The facility is noted for many successful surgeries and numerous successful births at the maternity division of the hospital. Obuasi has a golf course, and the Obuasi Ashanti Gold Sporting Club, a professional football club, is based at Obuasi's Len Clay Stadium. Notable people from Obuasi mining town include Sam E. Jonah (KBE) the former CEO of Ashanti Goldfields Company, Jonathan Mensah, Yaw Boakye Yiadom, and John Mensah. As of 13 September 2008, Obuasi has been a sister city of Riverside, California, United States.