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The Saudi Seasonal Calendar (Anwaa)

June 3, 2026 Culture & Heritage 6 min read
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Related tool: Saudi Seasons Calendar — see the current season and the dates of all the year's seasons.

Before modern calendars, the people of Arabia relied on star movements and the Anwaa to know the seasons of rain, planting, cold, and heat. These seasons remain part of Saudi and Gulf culture. This guide introduces the most prominent ones.

The traditional seasons

SeasonBegins aroundTrait
SuhailAugust 24Summer heat begins to break
Al-WasmOctober 16Best rain and planting season
Al-MurabbaniyahDecember 7Coldest days (~40 days)
Al-ShabtJanuary 16Cold with daytime warming
Al-AqaribFebruary 10Late-winter swings
Al-DhiraanMarch 21Spring equinox and greenery
Al-ThurayaMay 2Heat begins to intensify
Al-JawzaJune 14Peak summer heat

Dates are approximate for cultural and agricultural reference and may differ by a day or two between sources.

Why are the dates roughly fixed?

Because these seasons are tied to the rising of stars and the sun's movement — that is, the solar year, not the lunar one. So each year they fall on roughly the same Gregorian dates, unlike the Hijri months which advance each year.

Their place in culture

Phrases like "Suhail has risen," "we entered Al-Wasm," and "the cold of Al-Murabbaniyah" are still part of everyday talk in Saudi Arabia and the Gulf, connecting people to their heritage and to the weather around them.

Frequently Asked Questions

It is a traditional calendar based on star movements and climate seasons that divides the year into periods such as Al-Wasm, Al-Murabbaniyah, and Suhail. Ancestors used it to know planting, rain, cold, and heat timings. It follows the solar year, so its dates are roughly fixed each year.

Al-Wasm begins around mid-October and lasts about fifty days. It is one of the best seasons for rain, planting, and greenery in Saudi Arabia and the Gulf.

Al-Murabbaniyah is the coldest period of the year, lasting about forty days starting around December 7, with frequent cold, frost, and rain. Its name comes from the forty (arbaeen) days.

Suhail rises around August 24. Its rising is a traditional sign that summer heat is gradually breaking and nights are cooling — people say, "When Suhail rises, the night cools."

Use the free seasonal calendar tool: it shows the current season automatically by today's date, with a list of the year's seasons and each season's weather traits.

See the Current Season Now

Open the Seasonal Calendar