International Journal of Aquaculture, 2026, Vol.16, No.2, 111-124 http://www.aquapublisher.com/index.php/ija 117 (Idogho et al., 2022b). However, excessive rainfall also heightened flooding risks, as noted in West Africa (Ragatoa et al., 2020). Projections for 2016-2025 indicate further increases to 1,158 mm, consistent with national anomalies (Akinsanola and Ogunjobi, 2020). While increased rainfall may replenish habitats, extremes threaten ecosystem stability. Cohen et al. (2016) demonstrated similar climate-driven disruptions in Lake Tanganyika, underscoring the compounded risks of rainfall variability and warming. Overall, Ilaje’s rainfall dynamics reflect regional climate trends, emphasizing the need for adaptive water management, flood control, and resilient livelihood strategies. Table 3 Rainy season, rainfall and temperature in Ilaje LGA (1996-2025) Year Onset Date Cessation Date Length of Rainy Days Annual Rainfall (mm) Rainfall Deviation (%) Mean Annual Temp (°C) Temp Deviation (°C) 1996 Mar-25 Oct-28 218 1,820 -7.6 27.4 -0.3 1997 Mar-29 Oct-20 206 1,960 -0.6 27.7 0.0 1998 Apr-05 Oct-18 196 1,750 -10.4 28.0 0.3 1999 Mar-22 Oct-25 217 2,020 2.0 27.9 0.2 2000 Apr-02 Oct-15 196 2,120 7.6 28.1 0.4 2001 Mar-30 Oct-19 203 1,890 -3.9 27.6 -0.1 2002 Mar-28 Oct-17 203 2,050 3.4 27.8 0.1 2003 Apr-03 Oct-21 201 1,980 0.3 28.0 0.3 2004 Mar-27 Oct-12 199 2,200 8.9 28.2 0.5 2005 Apr-01 Oct-16 198 1,880 -4.6 27.5 -0.2 2006 Mar-25 Oct-18 207 1,740 -11.0 27.3 -0.4 2007 Apr-04 Sep-30 179 2,060 3.8 27.9 0.2 2008 Mar-29 Oct-14 199 2,180 8.3 28.0 0.3 2009 Apr-06 Oct-10 187 1,930 -1.1 27.7 0.0 2010 Mar-26 Oct-13 201 2,070 3.6 28.1 0.4 2011 Apr-03 Oct-11 191 1,860 -5.3 27.6 -0.1 2012 Mar-28 Oct-20 206 1,990 0.7 27.8 0.1 2013 Apr-01 Oct-16 198 2,150 6.8 28.3 0.6 2014 Mar-24 Oct-18 208 1,810 -6.0 27.5 -0.2 2015 Apr-05 Oct-12 190 1,700 -12.1 27.2 -0.5 2016 Mar-27 Oct-14 201 2,030 2.6 27.9 0.2 2017 Mar-30 Oct-15 199 2,090 5.5 28.0 0.3 2018 Apr-02 Oct-18 199 1,970 0.0 27.8 0.1 2019 Mar-26 Oct-20 208 2,200 8.9 28.4 0.7 2020 Apr-04 Oct-11 191 1,950 -0.5 27.9 0.2 2021 Mar-29 Oct-13 198 1,830 -5.8 27.6 -0.1 2022 Apr-03 Oct-15 195 2,040 3.1 28.1 0.4 2023 Mar-31 Oct-18 201 2,120 7.0 28.3 0.6 2024 Apr-02 Oct-10 191 2,010 1.0 28.4 0.7 2025 Apr-07 Oct-05 182 1,980 0.3 28.5 0.8 Source: Nigerian Meteorological Agency (NiMet), 2025
RkJQdWJsaXNoZXIy MjQ4ODYzNA==