Question 1

Is Portsmouth safe to visit?

Accepted Answer

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

Question 2

What is the sea temperature in Portsmouth in July?

Accepted Answer

The sea off Portsmouth averages about 17°C in July.

Question 3

When is the best time to visit Portsmouth?

Accepted Answer

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

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	-4	-3	2	7	13	18	21	20	16	10	5	-1
Sea °C	6	4	4	6	9	14	17	18	16	13	10	8
Rain (days)	88	80	92	103	90	85	80	83	87	103	115	97

Portsmouth, United States

Climate by month