A La Niña watch is now in effect as signs begin to point toward a return to the pattern heading into this winter.

Forecasters around the world keep tabs on the El Niño-Southern Oscillation for clues about conditions in the seasons ahead.

La Niña conditions can have a significant effect on global weather patterns, including temperature and precipitation trends here in Canada.

DON'T MISS: WHAT HAPPENS WHEN EL NIÑO AND LA NIÑA DISAPPEAR?

WATER TEMPERATURES LIKELY TO DIP IN THE COMING MONTHS

A La Niña occurs when water temperatures are at least 0.5°C cooler than normal for several consecutive months, while an El Niño unfolds during an equivalent episode of warmer-than-normal water temperatures.

[La Niña temperatures August 2025] La Niña temperatures August 2025

Sea surface temperat

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