2026 El Nino Southern Oscillation Weekly Tracking
Additional Information
April 20, 2026
2026 is starting at -0.6 degree C similar to 1872, 1899. 1939, 1955. 1986 and 2018. These were years following La Nina years. Some years ended in weak El Nino and some in strong La Nina. Current trend is the 1899 El Nino year. By June the direction of development will be certain.
Annual Summary - 2026
Abtew, W. and P. Trimble. 2010. El Niño Southern Oscillation Link to South Florida Hydrology and Water Management Applications. Water Resources Management, 24(5):4255-4271,
Abtew, W., A. Melesse and T. Dessalegne. 2009. El Niño Southern Oscillation link to the Blue Nile River Basin Hydrology. Hydrological Processes. Vol. 23:3653-3660; DOI:10.1002/hyp.7367
