The way to Coimbra with Google Maps just place your present location.

From Lisbon Airport (LIS), 'Aeroporto da Portela', you can get to Coimbra by Train (recommended) from Orient ('Oriente') Station or by bus. From the airport you get the subway to 'Oriente' railway station, or go by taxi or bus.

From Porto Airport (OPO), 'Aeroporto Sá Carneiro', you can get to Coimbra by Train (recommded) from Porto - Campanha ('Porto - Campanhã') Station or by bus.

Types of Trains
   - Regional: with stops in almost every station (slow)
   - Interegional: fewer stops than the Regional train
   - Intercidades: only stops in major train stations
   - Alfa Pendular: almost direct without stops (fast)

Coimbra railway station
There are 2 railways stations to be considered ('Coimbra B') on the main line (Lisboa - Porto) and ('Coimbra A') on a short branch from the main line to the city center.

WEATHER in Coimbra 

Those travelling by car: Google Maps for directions. On the 'TO' field replace with:
     Departamento de Matemática - Universidade de Coimbra
for the venue of the conference at 'Departamento de Matemática'.

Map of Highways to Coimbra