Climate

Main articles: Geography of Bahrain and Climate of Bahrain

The Zagros Mountains across the Persian Gulf in Iraq cause low level winds to be directed toward Bahrain. Dust storms from Iraq and Saudi Arabia transported by northwesterly winds cause reduced visibility in the months of June and July.

Due to the Persian Gulf area's low moisture, summers are very hot and dry. The seas around Bahrain are very shallow, heating up quickly in the summer to produce high humidity, especially at night. Summer temperatures may reach more than 40 °C (104 °F) under the right conditions. Rainfall in Bahrain is minimal and irregular. Rainfalls mostly occur in winter, with a recorded maximum of 71.8 mm (2.83 in).[114]
[hide]Climate data for Manama
Month     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec     Year
Average high °C (°F)     20.0
(68.0)     21.2
(70.2)     24.7
(76.5)     29.2
(84.6)     34.1
(93.4)     36.4
(97.5)     37.9
(100.2)     38.0
(100.4)     36.5
(97.7)     33.1
(91.6)     27.8
(82.0)     22.3
(72.1)     30.1
(86.2)
Average low °C (°F)     14.1
(57.4)     14.9
(58.8)     17.8
(64.0)     21.5
(70.7)     26.0
(78.8)     28.8
(83.8)     30.4
(86.7)     30.5
(86.9)     28.6
(83.5)     25.5
(77.9)     21.2
(70.2)     16.2
(61.2)     23.0
(73.4)
Precipitation mm (inches)     14.6
(0.575)     16.0
(0.63)     13.9
(0.547)     10.0
(0.394)     1.1
(0.043)     0
(0)     0
(0)     0
(0)     0
(0)     0.5
(0.02)     3.8
(0.15)     10.9
(0.429)     70.8
(2.787)
Avg. precipitation days     2.0     1.9     1.9     1.4     0.2     0     0     0     0     0.1     0.7     1.7     9.9
Source: World Meteorological Organisation (UN) [115]