A three- year (2017-2019) study was conducted on the Kokstad Research Station to investigate the effect of lambing season, year, sex and birth status on wool characteristics of Merino ewes and lambs. Data was collected from 2017 to 2019 using 107 ewes and 226 lambs that were born in autumn (AL 86), spring (SL 71) and all year round (YR 69) as lambing seasons. Greasy fleece weight (GFW) of ewes in SL were Magawana, 2023 Vol 16 (1)0.3 kg lighter (P<0.001) than those in AL and YR. The clean wool weight (CFW) of ewes in AL and YR were 0.2 kg were heavier (P<0.001) than those in YR. The year of lambing had influence on wool traits in 2017, 2018 and 2019. In 2017, ewes mean FD (0.8, 1.3 µm) significantly (P<0.001) finer than in 2019 and 2018. There were positive (P<0.001) correlations (0.13 - 0.91) between FSD and FD, CVFD, CFW and also negative correlations (-0.13-0.59) between CF and FD, CVFD, CL, CFY, GFW in ewe wool traits. The GFW for lambs born in the SL were 0.3 kg lighter (P<0.001) than those in AL and YR. There was a moderate to high positive correlation coefficients (0.13 – 0.98) between FSD and FD, CVFD, CFW and also negative correlation coefficients (-0.13-0.77) between CF and FD, CVFD, CL, CFY, GFW in ewe wool traits. From the results, it is recommended that for communal farming systems serious consideration should be taken to implement specific breeding and lambing seasons to improve wool income.