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In this work we analyse the H-component of geomagnetic field at low latitude region (-17.88° S), the F10.7cm solar flux index, the Interplanetary Magnetic Field (IMF), the y-component of Solar Wind Electric Field (Ey) and the solar wind speed (Vsw) using multiscale analysis methods. The objective is to study coherence and phase relationship between these indexes, during geomagnetic storm periods in the ascending phase of solar cycle 25. The H-component data used was provided by INPE's EMBRACE magnetometer located at Jataí, Goiás state, Brazil. The solar radio flux index, IMF, and Ey Solar Wind Electric Field were obtained from SPDF NASA/GSFC OMNIWeb interface. By applying of wavelet transform and its derivatives, Cross Wavelet transform (XWT) and Wavelet Coherence Transform (WCT), correlations between H and F10.7 cm were computed in certain scales and periods of the year corresponding to moderate geomagnetic storms, which can be confirmed by Disturbance Storm Time (DST) index analysis. Furthermore, phase relationship between data was obtained according to Torrence and Webster, 1999. We observed that the H-component is lagging F10.7 cm, as expected in theory, with the exception of two months: March and August. To elucidate this issue, the same methods were applied to Solar wind Data, namely IMF, Ey and Vsw.