Forecasters are monitoring three areas of disturbed weather across the Atlantic, including two systems that could see some development in the coming days.

The area with the greatest chance of development is in the eastern tropical Atlantic, where a tropical wave is expected to move off the west coast of Africa on Monday.

The US National Hurricane Centre (NHC) said an area of low pressure could form in association with the wave early this week.

Environmental conditions are expected to be marginally favourable for development, with a tropical depression potentially forming by the middle to latter part of the week.

The system is forecast to move generally westward at 15 to 20 mph across the eastern and central tropical Atlantic.

The NHC gives the disturbance a near-zero chance of development during the next 48 hours, increasing to a 50 per cent chance over the next seven days.

Meanwhile, a low-pressure system located about 400 miles southeast of Bermuda is showing some signs of organisation.

The NHC said further development is possible and the system could become a short-lived tropical depression or tropical storm during the next couple of days as it moves northward to north-northeastward, well northeast of Bermuda.

The system has a 40 per cent chance of development over the next 48 hours and seven days.

A third, non-tropical area of low pressure located a couple hundred miles west of Portugal is producing limited shower activity.

The NHC said the system is no longer expected to develop subtropical characteristics before moving over Portugal and Spain early Monday.

It has a near-zero chance of development over both the next 48 hours and seven days.

None of the systems currently poses an immediate threat to the Caribbean, with the areas being monitored at different stages of development and generally well away from the region.