Captain reported that actual slant range visibility conditions are often worse than reported on ATIS...

Attributes
ACN	1657267
Time
Date	201906
Local Time Of Day	0601-1200
Place
Locale Reference	SBCW.ARTCC
State Reference	FO
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	Boeing Company Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 166 Flight Crew Total 10760 Flight Crew Type 4377
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence

Narrative:

Fly this identification frequently. This time of year we land early enough in day where sun and haze conspire to form very poor slant angle visibility. The tower and ATIS are non-specific to actual aircraft visibility. They only call 'cavok'. The published minimum visibility for this 'right' approach to 9R ILS is 3100 meters (about 2 miles) and 3300 da.no way is anyone seeing the runway by the map. Yet they all land ok. H ow is that? We see ground ok; barely; but not [the] runway until around 300 to 400 feet [AGL]. I have many times requested 'T' [approach] which is an actual ILS to 200 feet and 1/2 mile (what is needed) but ATC gru always refuses. That is the problem. By refusing to give us the real ILS they are inviting this situation; since we cannot tell what the actual slant angle visibility is until we are at or near map. This creates a conflict and unsafe situation; and is a regular occurring situation here.

Original NASA ASRS Text

Title: Captain reported that actual slant range visibility conditions are often worse than reported on ATIS for their early morning approach and landing to SBGR; but the Tower is resistant to their requests for the full ILS.

Narrative: Fly this ID frequently. This time of year we land early enough in day where sun and haze conspire to form very poor slant angle visibility. The Tower and ATIS are non-specific to actual aircraft visibility. They only call 'CAVOK'. The published minimum visibility for this 'R' approach to 9R ILS is 3100 Meters (about 2 miles) and 3300 DA.No way is anyone seeing the runway by the MAP. Yet they all land OK. H ow is that? We see ground OK; barely; but not [the] runway until around 300 to 400 feet [AGL]. I have many times requested 'T' [approach] which is an actual ILS to 200 feet and 1/2 mile (what is needed) but ATC GRU always refuses. That is the problem. By refusing to give us the real ILS they are inviting this situation; since we cannot tell what the actual slant angle visibility is until we are at or near MAP. This creates a conflict and unsafe situation; and is a regular occurring situation here.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Captain reported that actual slant range visibility conditions are often worse than reported on ATIS for their early morning approach and landing to sbgr; but the tower is resistant to their requests for the full ILS.