Temperature
Cool by day, cold at night.
Karaj is usually most comfortable in April and October. Typical daytime highs range from 45–98°F across the year. Most months see little rain.

Cool by day, cold at night.
A few rainy days. About 6 wet days this month.
Plenty of sun this month.
In November, afternoons feel about 45° and nights feel near 37°.
Mostly clear skies this month.
Calm winds are typical in November.
November late afternoons are around 49°F, easing to about 45°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 45 | 28 | 1.4 | 7 | 8.8 | 61 |
| Feb | 48 | 31 | 1.5 | 8 | 9.5 | 61 |
| Mar | 58 | 40 | 1.8 | 9 | 10.4 | 54 |
| Apr | 69 | 49 | 1.5 | 7 | 11.6 | 46 |
| May | 82 | 59 | 0.5 | 3 | 12.3 | 33 |
| Jun | 93 | 69 | 0.1 | 1 | 13.1 | 25 |
| Jul | 98 | 74 | 0.1 | 0 | 13.2 | 25 |
| Aug | 96 | 72 | 0.1 | 0 | 12.9 | 25 |
| Sep | 88 | 64 | 0.1 | 0 | 11.4 | 27 |
| Oct | 75 | 53 | 0.6 | 3 | 10.5 | 38 |
| Nov | 58 | 40 | 1.2 | 6 | 8.8 | 56 |
| Dec | 49 | 32 | 1.4 | 7 | 8.2 | 62 |
Similar climates
Want a side-by-side climate view? Compare Karaj with Samarkand.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 26, 2026
Data & methodology