B737 Undifferentiated or Other Model
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 146; Flight Crew Type 1195
Other / Unknown
Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Other / Unknown
General Work Refused
Human Factors; Weather
This is a pilot pushing issue.  Due to fog and visibility below minimums we could not get into [planned destination] last night. It was unforecasted and we did not have an alternate and/or fuel to try again so we diverted to [an alternate]. Shortly after arriving; as I was on the phone with Dispatch; someone walked in the cockpit and starts talking even though I was on the phone. I told him to hold on. I finish my call and he said; '[another air carrier] just landed in ZZZ1; so I was wondering when you were going to head back there. I was honestly taken aback. I told him; 'I don't know; the F/O and I have to look at the weather again'; and I would let him know. I conferred with the F/O (First Officer) who was comfortable trying again as was I; as well as the flight attendants (although one was going to run into a legality issue if the delay was any longer). However; I wanted to speak to the OPS guy. I called OPS and asked him to come back. At first he wanted to just talk on the radio; but I asked him to come to the cockpit. When he arrived; I let him have it. I told him that the weather was below legal landing minimums; and that flight landing after us was probably done illegally. The RVR when we went missed had dropped to 800 after we passed the FAF (Minimum RVR for landing on Runway X is 1800). I can assure you when we got to minimums we saw nothing. So the fact that Name1 comes up and tells me to essentially continue an illegal operation because another airline did it is pure and simple pilot pushing and unprofessional on so many levels.
B737 Captain reported he was put under pressure by operations personnel to operate a flight into a below-minimums airport.