Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Castel Guelfo di Bologna features a humid subtropical climate (Cfa). Temperatures typically range between 4 °C (40 °F) and 27 °C (80 °F) through the year, but rarely can drop to -10 °C (14 °F) or can rise to as high as 40 °C (105 °F). The average annual precipitation amounts to about 758 mm (29.9 inches) and receives 103 rainy days on the 1 mm (0.04 inches) threshold annually. Castel Guelfo di Bologna enjoys an average of 3776 hours of sunshine throughout the year, and daylight varies from 8 hours 51 minutes to 15 hours 29 minutes per day.
The warmest months in Castel Guelfo di Bologna are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (77 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 7 °C (40 - 46 °F) throughout the day. On average each year, Castel Guelfo di Bologna experiences 104 days above 25 °C (77.0 °F) and 23 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 15°C (60°F) |
20°C (68°F) |
25°C (77°F) |
27°C (82°F) |
33°C (91°F) |
40°C (104°F) |
38°C (100°F) |
40°C (105°F) |
34°C (94°F) |
28°C (83°F) |
21°C (70°F) |
17°C (63°F) |
| Mean maximum | 14°C (58°F) |
17°C (64°F) |
22°C (72°F) |
25°C (77°F) |
29°C (85°F) |
34°C (94°F) |
36°C (98°F) |
37°C (99°F) |
32°C (90°F) |
26°C (78°F) |
19°C (67°F) |
15°C (59°F) |
| Average high | 9°C (48°F) |
12°C (54°F) |
15°C (59°F) |
19°C (67°F) |
24°C (75°F) |
30°C (86°F) |
32°C (89°F) |
32°C (90°F) |
26°C (80°F) |
21°C (70°F) |
14°C (58°F) |
10°C (49°F) |
| Daily mean | 4°C (40°F) |
7°C (46°F) |
10°C (50°F) |
14°C (58°F) |
19°C (66°F) |
25°C (77°F) |
26°C (80°F) |
27°C (80°F) |
21°C (71°F) |
16°C (61°F) |
11°C (52°F) |
6°C (43°F) |
| Average low | 1°C (34°F) |
4°C (39°F) |
5°C (42°F) |
9°C (49°F) |
14°C (58°F) |
19°C (67°F) |
21°C (70°F) |
21°C (71°F) |
17°C (62°F) |
12°C (54°F) |
8°C (47°F) |
3°C (37°F) |
| Mean minimum | -3°C (27°F) |
-3°C (28°F) |
-1°C (31°F) |
3°C (38°F) |
9°C (49°F) |
15°C (59°F) |
18°C (64°F) |
16°C (62°F) |
10°C (50°F) |
7°C (45°F) |
1°C (34°F) |
-2°C (29°F) |
| Minimum | -6°C (22°F) |
-8°C (18°F) |
-10°C (14°F) |
-1°C (31°F) |
7°C (45°F) |
13°C (55°F) |
17°C (62°F) |
13°C (57°F) |
8°C (46°F) |
5°C (42°F) |
-1°C (31°F) |
-3°C (26°F) |
Compare temperature, precipitation, sunshine, UV index in Castel Guelfo di Bologna, Emilia-Romagna, Italy with other places around the world.
Castel Guelfo di Bologna usually has the most precipitation in May, September and November, with an average of 11 rainy days and 93 mm (3.6 inches) of precipitation per month. The driest months in Castel Guelfo di Bologna are January, March and June. On average, 37 mm (1.5 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 23 (0.9) | 73 (2.9) | 46 (1.8) | 52 (2.0) | 92 (3.6) | 42 (1.7) | 73 (2.9) | 46 (1.8) | 85 (3.4) | 61 (2.4) | 101 (4.0) | 65 (2.6) |
| Average precipitation days (≥ 1 mm) | 4 | 9 | 7 | 8 | 13 | 7 | 9 | 7 | 10 | 8 | 10 | 11 |
The sunniest months in Castel Guelfo di Bologna are June, July and August, when the sun shines an average of 13 hours 33 minutes a day. Least sunny months in Castel Guelfo di Bologna: January, November and December receive an average of 6 hours 43 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 180 | 224 | 312 | 345 | 389 | 420 | 427 | 397 | 338 | 300 | 220 | 217 |
| Mean daily daylight hours | 9h 14m | 10h 26m | 11h 56m | 13h 30m | 14h 49m | 15h 29m | 15h 8m | 13h 57m | 12h 28m | 10h 55m | 9h 34m | 8h 51m |
Castel Guelfo di Bologna experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Castel Guelfo di Bologna UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
Discover in-depth weather details for every month in Castel Guelfo di Bologna. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Castel Guelfo di Bologna's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.
Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.