The central solar temperature T and its uncertainties are calculated in helioseismologically-constrained solar models .
From the best fit to the convective radius , density at the convective radius and seismically determined helium abundance the central temperature is found to be T = 1.58 \times 10 ^ { 7 } K , in excellent agreement with Standard Solar Models .
Conservatively , we estimate that the accuracy of this determination is \Delta T / T = 1.4 \% , better than that in SSM .
Neutrino fluxes are calculated .
The lower limit to the boron neutrino flux , obtained with maximum reduction factors from all sources of uncertainties , is 2 \sigma higher than the flux measured recently by SuperKamiokande .