Ahmedabad has a very hot and humid climate with summer temperatures go up to 45° C. In the winters, temperatures may touch a low of 5° C. But it is the frequent rains that send the relative humidity levels zooming up through out the year. On the whole, the state is moist in the southern districts and dry in the northern districts. The intensity of the climate has been reduced by the Arabian sea and the Gulf of Cambay . The forest covered mountains on the eastern boundary also help reduce the intensity of the climate rendering it pleasant and healthy. The winter season starts from November and continues till mid-March. After that the days start getting warmer though the nights are pleasant. From mid-March to mid-June is the summer season. At its peak, the temperature touches 45 or even 46 degrees celsius. The south west monsoon lashes the State from mid-June and continues till September end. Like the first half of March, in October too the days are warm but the nights pleasant.