Umm Hajar is a city of approximately 37,900 people in Batha, Chad. Located in the Africa/Ndjamena time zone at 13.3°N latitude.
In 2025, Umm Hajar averaged an annual temperature of 86°F, with hottest temperatures reaching 111°F in April and lowest around 59°F in January. The city received approximately 11 inches of precipitation during the year.
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