There are no horse latitudes on Venus, only equatorial doldrums and polar fronts / collars. Convection driven Hadley cells on Venus stretch to ±60° in latitude from the intertropical convergence zone to North and South polar collars, so no subtropical latitudes high pressure areas. From Wikipedia on Atmosphere of Venus - Circulation:
This is quite a bit different to formation of subtropical anticyclone zones between trade winds and westerlies on Earth:
And average wind speed at 50 km altitude on Venus is between 55 and 70 m/s (200 to 250 km/h). From Geoffrey A. Landis' Exploring Venus (PDF):
Comparison of winds measured by radio tracking of probes below 60 km
with winds estimated from the measured pressure by means of the
assumption of cyclostrophic balance. Above 60 km, the winds are
inferred entirely from measured pressures.
If you're curious about this for the purpose of aerobot exploration or aerostat colonization, you would be advised to increase your altitude above the sulfuric acid clouds reaching to about 60 km altitude, but properly shielded craft (e.g. high density PE plastics are resistant to it) shouldn't have these problems also lower, unless they're solar powered, at which point you'll again have to aim higher. Refer to Geoffrey A. Landis' work on Venus aerostat colonies and the latter part of my answer to What useful materials can be extracted from Venusian atmosphere? for more info.
Equatorial doldrums, even if they're fast, should be fairly stable though, again something I already discuss in my answer to A cloud-top colony on Venus, will it drift to the poles?, in particular in the part about the observed path taken by the two Vega program balloons, both released at near-equatorial latitudes. Balloons traveled at an average altitude of 54 km for roughly 46 hours and navigated about 1/3 the Venusian circumference. That comes out at average speed of ~ 278 km/h. Not 370 km/h, but not exactly a mild breeze either.