Average data for 10 years
1 May
Thursday
+20°
+15°
2 May
Friday
+20°
+15°
3 May
Saturday
+20°
+15°
4 May
Sunday
+19°
+14°
5 May
Monday
+19°
+14°
6 May
Tuesday
+23°
+14°
7 May
Wednesday
+22°
+15°
8 May
Thursday
+21°
+16°
9 May
Friday
+21°
+15°
10 May
Saturday
+21°
+16°
11 May
Sunday
+20°
+16°
12 May
Monday
+22°
+15°
13 May
Tuesday
+21°
+16°
14 May
Wednesday
+20°
+16°
15 May
Thursday
+20°
+15°
16 May
Friday
+19°
+13°
17 May
Saturday
+19°
+14°
18 May
Sunday
+21°
+14°
19 May
Monday
+23°
+15°
20 May
Tuesday
+23°
+17°
21 May
Wednesday
+24°
+17°
22 May
Thursday
+23°
+17°
23 May
Friday
+22°
+17°
24 May
Saturday
+24°
+17°
25 May
Sunday
+26°
+18°
26 May
Monday
+26°
+20°
27 May
Tuesday
+27°
+20°
28 May
Wednesday
+27°
+20°
29 May
Thursday
+27°
+21°
30 May
Friday
+28°
+21°
31 May
Saturday
+26°
+20°
Cities with similar weather in May
Greece
Heraklion
United States
Washington
Kazakhstan
Aktau
Kazakhstan
Atyrau
Greece
Hersonisos
In May, the weather in Portsmouth is typically warm. Average daily high temperature in May is about 22 degrees above zero. On average, Portsmouth has 11 partly cloudy, 10 rainy, 8 sunny, and 2 cloudy days in May. The rains are usually heavy.