The National Service of Meteorology and Hydrology of Peru (Senamhi) has issued an alert for a significant rise in daytime temperatures across Lima’s central coast between Tuesday, July 14, and Friday, July 17. Driven by the persistence of El Niño Costero, the capital is expected to see temperatures climb well above seasonal winter norms, with some inland districts reaching highs of 29 °C.
Drivers of the Winter Warming Trend
The unseasonably warm weather is linked to the ongoing presence of El Niño Costero. According to Senamhi, this phenomenon has led to warmer waters along the Peruvian coast, while the simultaneous weakening of the South Pacific Anticyclones and the arrival of northern winds have further fueled the temperature spike.
These atmospheric conditions are expected to result in more frequent clear skies and increased solar radiation. While the afternoons will feel notably warm, the agency notes that typical winter conditions, such as morning mist and light drizzle, will persist in coastal districts.
Temperature Forecasts by District
The impact of this warming will vary depending on proximity to the Pacific Ocean. In districts located directly along the coast, temperatures are forecasted to fluctuate between 21 °C in the early morning and 27 °C in the afternoon.
Inland areas are expected to experience more extreme shifts. Districts such as La Molina, Ate, Santa Anita, and San Juan de Lurigancho may see temperatures ranging from 19 °C to as high as 29 °C during this period.
Public Health Recommendations
Due to the increase in clear skies, Senamhi warns that ultraviolet (UV) radiation indices will remain at high levels through July 17. The agency recommends that the public avoid direct sun exposure between 10:00 a.m. and 3:00 p.m.
To mitigate risks, officials advise the use of sunblock, wide-brimmed hats, and UV-protected eyewear. Maintaining proper hydration is also emphasized to help the body cope with the elevated temperatures.
Frequently Asked Questions
[Why is Lima experiencing high temperatures in mid-winter?]
[The rise in temperature is attributed to the presence of El Niño Costero, which brings warmer waters to the coast, combined with northern winds and a weakened South Pacific Anticyclone.]
[What are the expected temperature ranges for Lima?]
[Districts near the coast may reach 27 °C, while inland areas such as La Molina, Ate, Santa Anita, and San Juan de Lurigancho could hit 29 °C.]
[How long will this weather pattern last?]
[Senamhi forecasts these conditions to persist from Tuesday, July 14, through Friday, July 17.]
How are you adjusting your daily routine to manage the heat during this unusually warm winter week?