Heavy rain most of the morning with a brief glimpse of the Sun at 10:15. Then clouded again and cloudy at first/ second contact with light rain falling. Cloud became lighter at 12:45 but unable to get clean projection (62mm Zeiss Telementor). Wind became too strong so gave up trying to project as telescope acting like a wind vane. Then used 70mm f/6.0 refractor with Baader film filter. for direct viewing. Suddenly cloud disappeared giving a nice image at 13:51. Always surprised just how small Mercury appears in transit. Watched for around 14 minutes before cloud returned. By this time Sun was moving behind trees. Considering the state of the weather this morning I feel satisfied to have at least seen part of the transit. Sorry to have missed ingress though.