Genoa is located in the Mediterranean climate zone. Average yearly temperatures are about 15° C in January and 23° C in August. It has a mild Mediterranean climate, with no sudden changes in temperature. The average yearly temperature range - between maximum and minimum temperature - is only 5.4 degrees Celsius, which is one of the lowest in Italy. As a rule, precipitation is more frequent in October and November and reaches 1,300 mm on average a year.
The sea reaches a depth of 1,000 metres at about 20 km from the coast. It is mainly calm, with a tide range of 30 cm, and a warm sea-surface temperature, which in September is about 23° C.
The following table shows the maximum, minimum and average temperature for each month of the year:
| Month | Max. | Min. | Average |
|---|---|---|---|
| January | 10.4 | 5.5 | 7.9 |
| February | 11.7 | 6.2 | 8.9 |
| March | 14.4 | 8.9 | 11.7 |
| April | 17.5 | 11.9 | 14.7 |
| May | 20.6 | 15.1 | 17.8 |
| June | 24.8 | 19.1 | 22.0 |
| July | 27.4 | 21.6 | 24.5 |
| Augost | 27.6 | 21.6 | 24.6 |
| September | 25.2 | 19.4 | 22.3 |
| October | 20.2 | 14.0 | 17.1 |
| November | 15.4 | 10.5 | 13.0 |
| December | 11.7 | 6.9 | 9.3 |
Wheater forecast from ARPAL (Agenzia Regionale Protezione Ambienet Ligure), daily updates.
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Complete list (pdf file):
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