Karaj Climate by Month
Karaj, Alborz Province, Iran
Very hot summers and cool winters, with little rain.
Very hot summers and cool winters, with little rain: that's Karaj's climate in short. July is the warmest month, with highs around 95°F (35°C); January is the coolest at 45°F (7°C), and nights dip to 32°F (0°C). It gets only 11 in (279 mm) of rain a year. June to September are almost completely dry. The air is dry, averaging 45% relative humidity.
- Warmest month
- 95°F(35°C)
- Average high, July
- Coldest nights
- 32°F(0°C)
- Average low, January
- Rain per year
- 11 in(279 mm)
- No clear rainy season
- Humidity
- 45%
- Sunniest: June
Best and worst months in Karaj
Best for weatherThe most comfortable weather comes in May and October, with highs around 76°F (25°C) and about 0.8 in (21 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 45°F (7°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in October.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Karaj weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 45°F(7°C) | 32°F(0°C) | 1.4 in(36 mm) | 63% | 2.4 |
| FebFebruary | 50°F(10°C) | 36°F(2°C) | 1.5 in(39 mm) | 65% | 3.1 |
| MarMarch | 60°F(16°C) | 43°F(6°C) | 1.6 in(40 mm) | 46% | 4.0 |
| AprApril | 69°F(21°C) | 52°F(11°C) | 1.4 in(35 mm) | 38% | 4.8 |
| MayMayBest | 79°F(26°C) | 59°F(15°C) | 0.7 in(19 mm) | 37% | 6.0 |
| JunJune | 90°F(32°C) | 67°F(20°C) | 0.2 in(6 mm) | 30% | 6.9 |
| JulJuly | 95°F(35°C) | 72°F(22°C) | 0.2 in(4 mm) | 30% | 6.7 |
| AugAugust | 93°F(34°C) | 71°F(21°C) | 0.1 in(3 mm) | 30% | 6.3 |
| SepSeptember | 86°F(30°C) | 64°F(18°C) | 0.1 in(3 mm) | 34% | 5.3 |
| OctOctoberBest | 73°F(23°C) | 54°F(12°C) | 0.9 in(22 mm) | 40% | 3.9 |
| NovNovember | 58°F(14°C) | 42°F(6°C) | 1.3 in(34 mm) | 57% | 2.9 |
| DecDecember | 48°F(9°C) | 35°F(2°C) | 1.5 in(38 mm) | 67% | 2.3 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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