Wednesday will mark the longest fasting hours in Ramadan this year at 15 hours and 52 minutes, Egypt’s National Research Institute of Astronomy and Geophysics said in a statement.

Starting Thursday, the fasting hours will decrease one minute each day until it drops down to 15 hours and 37 minutes on the last day of Ramadan, 16 July.

Temperatures in Cairo will reach highs of 32 and lows of 21 degree Celsius, on Wednesday, the seventh day of the Islamic holy month.

The temperatures have declined in the past three days around Egypt after a heatwave hit the country during the first three days of Ramadan, with temperatures hovering between 38 and 40 degrees.

Muslims abstain from food and drink during daylight hours, from sunrise to sunset during Ramadan.

The institute also said that Ramadan this year will last for 29 days, as the moon will appear as a half-moon on Wednesday, thus marking the end of the first quarter in the lunar month.