Is Mercer Island safe to visit?

Travelia rates Mercer Island, United States “safe”, following US State Department and UK FCDO travel advisories.

What is the sea temperature in Mercer Island in July?

The sea off Mercer Island averages about 12°C in July.

Mercer Island is warmest in Aug and driest in Jul; mild (18–28°C) months are Jul, Aug.

coastal destination · city of 25,042 · warmest in Aug · sea ~12°C in July · mid-range

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	4	6	7	10	13	16	18	19	16	11	7	4
High °C	7	9	12	14	18	21	24	24	21	16	10	7
Low °C	2	2	3	5	8	11	13	13	11	7	4	2
Sea °C	8	8	8	9	10	11	12	12	11	10	9	8
Rain (days)	135	106	104	75	50	42	25	31	46	84	147	159

Warmest month: Aug. Driest: Jul.

JulAugmild (18–28°C)

Places from OpenStreetMap contributors (ODbL) — 103 sights and 221 places to eat mapped in total.