One factor may be a subtropical high pressure system known as the Azores High that has weakened the winds blowing over the ocean and limited the amount of dust blowing from the Sahara, which normally helps cool the ocean.

一个因素可能是，被称为亚速尔高压的一个副热带高压系统削弱了海洋上空的风，并限制了从撒哈拉沙漠吹来的沙尘量，而这些沙尘通常有助于给海洋降温。