  Trend-Run model was performed to estimate the trend in surface temperatures
recorded at 12 sites in Guinea from 1960 to 2016 and to examine the
contribution of each climate forcing. The coefficient of determination (R 2)
calculated varies between 0.60 and 0.90, it provides total information about
the simulation capability of the model. The decadal trend values also
calculated show an upward trend (between 0.04 {\textdegree}C $\pm$ 0.06
{\textdegree}C decade --1 and 0.21 {\textdegree}C $\pm$ 0.06 {\textdegree}C
decade --1). In addition, forcings' contributions were quantified, and the
annual oscillation (AO) contribution is higher for most of the stations,
followed by semiannual oscillation (SAO). Among the forcings, the tropical
Northern Atlantic (TNA) contribution is greater than that of the sunspot number
(SSN), Ni{\~n}o3.4 and Atlantic Ni{\~n}o (AN). Moreover, the Mann-Kendall test
revealed a positive significant trend for all stations except at the Macenta
site. Additionally, with sequential Mann-Kendall test, trend turning points
were found only for the stations of Mamou, Koundara and Macenta at different
dates. The temperature anomalies depict warming episodes (1970s, 1980s, 1984
and 1990s). Since then, the temperature is consistently increasing over the
country. A significant warming has been shown, which might be further
investigated using these models with additional contributing factors.
