Imperial weather by month & the best time to visit

🇺🇸 United States · small town · hot desert climate

The best time to visit Imperial is April — its sunniest month (Sunshine Score 99/100), with October and March close behind. Imperial averages about 3,841 hours of sunshine a year. Daytime highs around 30°C / 86°F and roughly 5 mm of rain in April.

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Sun hours / year

3,841

Sunniest month

April

Peak score

99/100

Rain / year

104 mm

Midday UV at peak

11 (extreme)

Population

17k

Elevation

Sea level

When is the best time to visit Imperial?

For sunshine, the best time to visit Imperial is April, then October and March. The dullest month is July (0/100, 5 mm of rain). The full month-by-month picture is in the table below.

How sunny is Imperial?

Imperial is one of the sunniest places on Earth: about 3,841 hours of sunshine a year. 99 Sunshine Score points separate April (99) from July (0), so the month you pick matters. It ranks #3 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. Rain has a clear season: the wettest stretch, around January, carries about 49% of the annual 104 mm.

Sunshine Score by month

See Imperial on the interactive sunshine globe →

Nearby places for sunshine

• Mexicali Mexico · 38 km · best in Mar · 3,841 h sun/yr
• Tijuana Mexico · 135 km · best in May · 3,734 h sun/yr
• Palm Springs United States · 140 km · best in Apr · 3,777 h sun/yr
• San Diego United States · 151 km · best in Jul · 2,854 h sun/yr
• Ontario United States · 232 km · best in May · 3,804 h sun/yr
• Los Angeles United States · 290 km · best in Jun · 3,009 h sun/yr

Nearest destinations

• Yuma United States · 93 km · 3,904 h sun/yr · best in Mar
• San Bernardino United States · 208 km · 3,804 h sun/yr · best in Jun