Spain’s State Meteorological Agency (AEMET) has issued a forecast for the second half of July, warning of a significant return to extreme temperatures across the Canary Islands. The meteorological authority anticipates that thermal values in the archipelago will reach or exceed 40 degrees Celsius in certain areas, driven by a surge in atmospheric pressure and the arrival of hot air masses from the African continent.
For residents and travelers, this period represents a recurring climatic challenge during the peak of the summer season. According to official AEMET severe weather advisories, the heat is expected to be particularly intense in the mid-altitudes and southern slopes of the islands, where geographical factors often trap warm air. This meteorological shift marks a return to the high-temperature thresholds that have characterized recent summer cycles in the region.
Understanding the Heat Wave Dynamics in the Canary Islands
The upcoming temperature spike is primarily attributed to a synoptic pattern involving an anticyclonic ridge that stabilizes the atmosphere, preventing the usual cooling influence of the trade winds. When these winds weaken, the “calima”—a suspension of dust particles from the Sahara Desert—often accompanies the heat, further increasing the perceived temperature and reducing air quality.
The Government of the Canary Islands’ Directorate General of Security and Emergencies maintains active monitoring protocols for these events. When forecasts predict temperatures exceeding 35 to 40 degrees Celsius, authorities typically activate precautionary measures to protect public health. These measures include limiting outdoor physical activity, increasing hydration awareness, and monitoring vulnerable populations, such as the elderly and those with pre-existing respiratory conditions.
Public Health and Safety Recommendations
Given the intensity of the projected heat, local health departments emphasize the importance of preventative behavior. Official guidance from the Spanish Ministry of Health during extreme heat events focuses on three core pillars: hydration, shade, and timing. Residents are advised to avoid direct sun exposure during the peak hours of 12:00 PM and 6:00 PM, when solar radiation is at its strongest.
For those working outdoors or engaging in tourism activities, the following safety steps are recommended by civil protection agencies:
- Hydration: Increase water intake consistently, even if you do not feel thirsty.
- Clothing: Wear light, loose-fitting, and light-colored clothing that allows for skin ventilation.
- Environment: Keep interior spaces as cool as possible by closing blinds and shutters during the day and ventilating at night.
- Monitoring: Check on neighbors, especially those living alone or with health limitations.
Regional Climate Trends and Future Outlook
The Canary Islands, while traditionally known for a mild “eternal spring” climate, have seen an increase in the frequency and duration of heat waves over the last decade. Data from AEMET’s historical climate records suggests that the intensification of these events aligns with broader Mediterranean and Atlantic warming patterns. While the archipelago’s maritime environment usually moderates extreme peaks, the specific alignment of high-pressure systems can lead to rapid, localized temperature surges.
The current forecast period for the remainder of July remains subject to change as meteorological models are updated daily. AEMET typically releases updated warnings 24 to 48 hours before an event peaks, providing specific color-coded alerts (yellow, orange, or red) depending on the severity of the expected heat.
The next confirmed updates regarding the specific duration and peak intensity of this heat wave will be available through the official AEMET portal. Residents are encouraged to monitor local civil protection bulletins for any changes to regional alert levels. We invite our readers to share their local observations or safety tips in the comments section below as we continue to track these evolving weather conditions.
Related reading