The tide timetable below is calculated from Portland, Connecticut but is also suitable for estimating tide times in the following locations:
- Portland (0km/0mi)
 - Middletown (1.3km/0.8mi)
 - Rocky Hill (6km/3.7mi)
 - Maromas (7km/4.4mi)
 - Higganum (10.2km/6.4mi)
 - Haddam (14.3km/9mi)
 - Hartford (15.1km/9.4mi)
 - Tylerville (18.6km/11.6mi)
 - East Haddam (19.1km/12mi)
 - Guilford Harbor (21.4km/13.4mi)