Weather in Amman

On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are May, September, and October. Amman is in Jordan at 32.0°N. The 2001–2020 NASA POWER daily record describes a dry, semi-arid climate.

August is the warmest month (average 27.3°C, high 35.6°C) and January is the coolest (average 8.3°C, low 2.9°C). Rain is a year that totals only 187 mm of rain. The wettest month is January at 44 mm; the driest is July at 1 mm.

When the score favours a visit

The three months with the highest comfort score are May, September, and October: May (21.8°C average, 4 mm, 45% humidity); September (25.5°C average, 1 mm, 50% humidity); October (21.8°C average, 6 mm, 50% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you prefer the hottest stretch, that is August. The coolest stretch is January.

Hot and cool months in Amman

Amman has a 19.0°C gap between its coolest monthly average (8.3°C in January) and its warmest (27.3°C in August). That is a northern-hemisphere pattern.

Across the year the mean afternoon high is 25.7°C. If you want the smallest day–night shock, look at months where the high and low sit close together; August nights still hold 19.0°C.

Rainfall pattern

Amman is dry. The whole year adds up to 187 mm. January is the “wet” month at 44 mm; July drops to 1 mm.

Humidity peaks near 70%. That usually lines up with the wetter months rather than the hottest ones.

Distinctive months in Amman

The year bottoms out in January. Plan for 2.9°C at night and 13.7°C in the afternoon. In February, Amman averages 15.9°C by day and 4.0°C at night, with 43 mm of rain. March: 20.2°C high, 6.7°C low, 23 mm rain, 60% humidity. April stands apart from the months beside it: 24.7°C / 9.6°C and 11 mm. May brings 4 mm and 1 rainy days; temperatures run from 13.6°C to 29.9°C. July is the driest month, averaging only 1 mm across 0 rainy days. Highs sit near 35.8°C.

Peak heat arrives in August: 35.6°C by day, 19.0°C at night, and 50% humidity. September brings 1 mm and 0 rainy days; temperatures run from 17.7°C to 33.3°C. October: 28.7°C high, 14.9°C low, 6 mm rain, 50% humidity. In November, Amman averages 21.1°C by day and 9.3°C at night, with 18 mm of rain. December brings 35 mm and 6 rainy days; temperatures run from 4.8°C to 15.8°C.

Amman and other cities in Jordan

Amman is the only Jordan city in this dataset, so the figures on this page are the national sample we publish. They still come from the same NASA POWER daily series (2001–2020) used everywhere else on the site.