Marana Climate by Month
Marana, Arizona, United States
Very hot summers and cool winters, with little rain.
Marana has very hot summers and cool winters, with little rain. Expect highs of 103°F (39°C) in July and 68°F (20°C) in December, with the coldest nights (December) near 38°F (3°C). It gets only 9.1 in (232 mm) of rain a year. April to June are almost completely dry. The air is dry, averaging 33% relative humidity.
- Warmest month
- 103°F(39°C)
- Average high, July
- Coldest nights
- 38°F(3°C)
- Average low, December
- Rain per year
- 9.1 in(232 mm)
- No clear rainy season
- Humidity
- 33%
- Sunniest: June
Best and worst months in Marana
Best for weatherThe most comfortable weather comes in February, March and November, with highs around 76°F (24°C) and about 0.6 in (16 mm) of rain a month.
Least pleasantJuly and August are the least pleasant; July is the hottest, with highs of 103°F (39°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 November.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Marana weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 68°F(20°C) | 38°F(4°C) | 0.8 in(21 mm) | 43% | 3.3 |
| FebFebruaryBest | 71°F(22°C) | 41°F(5°C) | 0.7 in(19 mm) | 39% | 4.0 |
| MarMarchBest | 78°F(25°C) | 46°F(8°C) | 0.6 in(14 mm) | 32% | 5.5 |
| AprApril | 85°F(29°C) | 51°F(11°C) | 0.2 in(6 mm) | 26% | 6.8 |
| MayMay | 93°F(34°C) | 60°F(16°C) | 0.1 in(3 mm) | 22% | 7.6 |
| JunJune | 102°F(39°C) | 68°F(20°C) | 0.3 in(7 mm) | 19% | 7.9 |
| JulJuly | 103°F(39°C) | 75°F(24°C) | 1.7 in(43 mm) | 35% | 6.8 |
| AugAugust | 101°F(38°C) | 75°F(24°C) | 1.4 in(36 mm) | 38% | 6.2 |
| SepSeptember | 98°F(37°C) | 69°F(21°C) | 1.1 in(28 mm) | 36% | 5.7 |
| OctOctober | 89°F(32°C) | 57°F(14°C) | 0.6 in(15 mm) | 29% | 4.9 |
| NovNovemberBest | 77°F(25°C) | 45°F(7°C) | 0.6 in(15 mm) | 32% | 3.7 |
| DecDecember | 68°F(20°C) | 38°F(3°C) | 1.0 in(25 mm) | 44% | 3.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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