The average annual temperature in Qeshm Island is about 26 ° C, with an average maximum and minimum daily temperature of 33 ° C and 18 ° C, respectively. The seasonal temperature difference of the Island is very high.

The warmest days are July to September and the coldest days of the month are January and February.

In Qeshm Island, maximum and minimum absolute temperatures are recorded at 46 and 0 ° C.

Sea water temperature varies from a minimum of 22 ° C to a maximum of 32 ° C in the summer. The water temperature decreases by 1 ° C for every five meters of depth.

Two tides and two high water occur around the island of Qeshm, with a mean height difference of 2 to 3 meters. The waves around Qeshm are often less than one meter high, so the sea around Qeshm can be called a quiet sea. But on the southern and eastern shores, the waves are sometimes more than 3 meters high.

The main currents around the island are tidal, and the fastest is visible between the Pohl and the old Laft, and its speed reaches 3 knots. The direction for the flow is in the high water to the west and during the tide to the east.

The salinity of sea water around Qeshm is 35 per thousand, and the color of the sea water is more green and in some cases blue.