Guidonia Montecelio Climate by Month
Guidonia Montecelio, Lazio, Italy
Hot summers and cool winters, with rain spread through the year.
Hot summers and cool winters, with rain spread through the year: that's Guidonia Montecelio's climate in short. August is the warmest month, with highs around 93°F (34°C); January is the coolest at 55°F (13°C), and nights dip to 38°F (3°C). About 32 in (823 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 93°F(34°C)
- Average high, August
- Coldest nights
- 38°F(3°C)
- Average low, January
- Rain per year
- 32 in(823 mm)
- No clear rainy season
- Humidity
- 65%
- Sunniest: July
Best and worst months in Guidonia Montecelio
Best for weatherMay is the best time for weather in Guidonia Montecelio: highs near 77°F (25°C) and about 2.2 in (57 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 56°F (13°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 May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Guidonia Montecelio weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 55°F(13°C) | 38°F(3°C) | 3.0 in(75 mm) | 75% | 1.7 |
| FebFebruary | 57°F(14°C) | 38°F(4°C) | 2.7 in(69 mm) | 71% | 2.5 |
| MarMarch | 62°F(17°C) | 43°F(6°C) | 2.6 in(65 mm) | 66% | 3.6 |
| AprApril | 68°F(20°C) | 49°F(9°C) | 2.4 in(61 mm) | 66% | 4.9 |
| MayMayBest | 77°F(25°C) | 56°F(13°C) | 2.2 in(57 mm) | 64% | 6.2 |
| JunJune | 86°F(30°C) | 63°F(17°C) | 1.6 in(40 mm) | 58% | 6.8 |
| JulJuly | 92°F(33°C) | 67°F(19°C) | 0.9 in(23 mm) | 52% | 7.1 |
| AugAugust | 93°F(34°C) | 68°F(20°C) | 1.0 in(26 mm) | 53% | 6.3 |
| SepSeptember | 83°F(28°C) | 61°F(16°C) | 3.1 in(78 mm) | 64% | 4.6 |
| OctOctober | 73°F(23°C) | 54°F(12°C) | 4.0 in(101 mm) | 69% | 3.2 |
| NovNovember | 63°F(17°C) | 47°F(8°C) | 4.9 in(124 mm) | 74% | 1.9 |
| DecDecember | 56°F(13°C) | 40°F(5°C) | 4.1 in(104 mm) | 70% | 1.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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