Strait of Hormuz – July 2026
Sea surface temperatures near the Strait of Hormuz have climbed to an astonishing 35°C (95°F), making the waters off northern Oman among the warmest currently recorded anywhere on the planet.
Recent weather analyses show exceptionally high ocean temperatures in the Gulf of Oman and the Persian Gulf, where shallow waters combined with intense summer sunshine create ideal conditions for extreme heating.
The unusually warm sea is also contributing to some of the highest humidity levels experienced anywhere in the world.
Meteorologists explain that when sea surface temperatures rise to these levels, the atmosphere absorbs enormous amounts of moisture. This moisture significantly increases the heat index, making outdoor conditions feel even hotter than the actual air temperature.
During the summer months, coastal cities across the region – including Dubai, Abu Dhabi, Muscat, and Bandar Abbas – can experience dangerous combinations of extreme heat and humidity.
The Strait of Hormuz, one of the world’s most strategically important waterways, connects the Persian Gulf with the Gulf of Oman and the Arabian Sea.
Besides its importance for global energy transport, the region is also home to busy ports, luxury resorts, and growing tourism destinations that face increasingly challenging weather conditions during the peak summer season.
Climate scientists note that while very warm waters are typical for this region during summer, persistent marine heatwaves are becoming more frequent and intense.
Elevated sea temperatures can place stress on marine ecosystems, including coral reefs and fish populations, while also increasing evaporation and atmospheric instability.
Authorities across the Gulf region continue to advise residents and visitors to avoid prolonged outdoor activities during the hottest parts of the day, remain well hydrated, and follow local heat advisories.
Travelers planning summer holidays should also be aware that although the sea may feel exceptionally warm, the combination of high humidity and extreme air temperatures can pose serious health risks.
As global temperatures continue to rise, events like these highlight the growing impact of marine heatwaves on weather, tourism, and coastal communities around the world.
Visitors to the Gulf region during the summer should schedule outdoor activities for the early morning or after sunset, drink plenty of water, wear lightweight clothing, and pay close attention to official weather and heat warnings.
Source: Regional meteorological analysis, and satellite sea surface temperature observations
