As an important commodity grain base in Jiangxi Province, the agricultural production and ecological balance of Ganfupingyuan Irrigation Area are highly dependent on the rhythmic changes of meteorological elements. Clarifying the abrupt change laws and correlation mechanisms of its key meteorological elements can provide scientific support for the climate adaptability management of the irrigation district. Based on the long-series meteorological observation data from 1987 to 2024 in this irrigation district, this study systematically explored the abrupt change characteristics, variation trends and inter-element correlations of air temperature, sunshine duration, precipitation and average wind speed by adopting the Pettitt test, linear trend analysis and correlation analysis methods. The results showed that the annual average temperature, annual average maximum temperature and annual average minimum temperature exhibited an overall upward trend, with significant abrupt changes occurring in 2007. After the abrupt change, the warming rate accelerated significantly, and the annual average minimum temperature increased by 0.110℃/a. The sunshine duration showed an overall downward trend, with a significant abrupt change of 25.95% only in autumn 2012. There was no obvious abrupt change point in precipitation, and the overall trend was non-significantly upward, with the increase in summer precipitation being the main contributing factor. The average wind speed underwent a significant abrupt change at the beginning of the 21st century, showing an overall downward trend, and the decline was more pronounced in summer and autumn. Correlation analysis indicated that the increase in average temperature was not driven by a single factor but by the synergistic effect of average maximum temperature and average minimum temperature. Furthermore, the decrease in average wind speed was significantly negatively correlated with the increase in the above three temperature indices, and their abrupt change times were synchronized, confirming that the decrease in wind speed was a key local driving factor for the temperature rise in the irrigation district. Therefore, during the study period, the increase of average temperature in Ganfupingyuan Irrigation Area was a coupled result of the synergistic driving of maximum and minimum temperatures and the regulation of decreasing wind speed. The synchronization of abrupt changes and the correlation laws of elements can provide technical references for local climate adaptability management.