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Home > World Climate Guides > Asia / Far East > Japan > Hiroshima
Hiroshima Climate Guide
Japan
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Maximum Daytime Temperature (°C)
Minimum Night-time Temperature (°C)
8
8 °C (46°F) Maximum Daytime Temperature in January
9
9 °C (48°F) Maximum Daytime Temperature in February
12
12 °C (54°F) Maximum Daytime Temperature in March
18
18 °C (64°F) Maximum Daytime Temperature in April
22
22 °C (72°F) Maximum Daytime Temperature in May
25
25 °C (77°F) Maximum Daytime Temperature in June
29
29 °C (84°F) Maximum Daytime Temperature in July
31
31 °C (88°F) Maximum Daytime Temperature in August
27
27 °C (81°F) Maximum Daytime Temperature in September
22
22 °C (72°F) Maximum Daytime Temperature in October
16
16 °C (61°F) Maximum Daytime Temperature in November
11
11 °C (52°F) Maximum Daytime Temperature in December
J F M A M J J A S O N D
0
0 °C (32°F) Minimum Night-time Temperature in January
1
1 °C (34°F) Minimum Night-time Temperature in February
3
3 °C (37°F) Minimum Night-time Temperature in March
9
9 °C (48°F) Minimum Night-time Temperature in April
13
13 °C (55°F) Minimum Night-time Temperature in May
18
18 °C (64°F) Minimum Night-time Temperature in June
22
22 °C (72°F) Minimum Night-time Temperature in July
23
23 °C (73°F) Minimum Night-time Temperature in August
19
19 °C (66°F) Minimum Night-time Temperature in September
13
13 °C (55°F) Minimum Night-time Temperature in October
7
7 °C (45°F) Minimum Night-time Temperature in November
3
3 °C (37°F) Minimum Night-time Temperature in December
J F M A M J J A S O N D
Hours of Sunshine
Hours of Daylight
4
4 Hours of Sunshine (39% of Daylight Hours) in January
4
4 Hours of Sunshine (39% of Daylight Hours) in February
5
5 Hours of Sunshine (45% of Daylight Hours) in March
6
6 Hours of Sunshine (45% of Daylight Hours) in April
7
7 Hours of Sunshine (47% of Daylight Hours) in May
5
5 Hours of Sunshine (36% of Daylight Hours) in June
6
6 Hours of Sunshine (41% of Daylight Hours) in July
7
7 Hours of Sunshine (51% of Daylight Hours) in August
5
5 Hours of Sunshine (42% of Daylight Hours) in September
6
6 Hours of Sunshine (49% of Daylight Hours) in October
5
5 Hours of Sunshine (45% of Daylight Hours) in November
4
4 Hours of Sunshine (40% of Daylight Hours) in December
J F M A M J J A S O N D
10
10 Hours of Daylight in January
11
11 Hours of Daylight in February
12
12 Hours of Daylight in March
13
13 Hours of Daylight in April
14
14 Hours of Daylight in May
14
14 Hours of Daylight in June
14
14 Hours of Daylight in July
13
13 Hours of Daylight in August
12
12 Hours of Daylight in September
11
11 Hours of Daylight in October
10
10 Hours of Daylight in November
10
10 Hours of Daylight in December
J F M A M J J A S O N D
Days with some Rain
Monthly Rainfall (mm)
20
20 Days with some Rain in January
19
19 Days with some Rain in February
18
18 Days with some Rain in March
15
15 Days with some Rain in April
14
14 Days with some Rain in May
17
17 Days with some Rain in June
18
18 Days with some Rain in July
15
15 Days with some Rain in August
16
16 Days with some Rain in September
13
13 Days with some Rain in October
14
14 Days with some Rain in November
17
17 Days with some Rain in December
J F M A M J J A S O N D
58
58 mm (2.3 inches) Monthly Rainfall in January
69
69 mm (2.7 inches) Monthly Rainfall in February
111
111 mm (4.4 inches) Monthly Rainfall in March
161
161 mm (6.3 inches) Monthly Rainfall in April
154
154 mm (6.1 inches) Monthly Rainfall in May
267
267 mm (10.5 inches) Monthly Rainfall in June
249
249 mm (9.8 inches) Monthly Rainfall in July
125
125 mm (4.9 inches) Monthly Rainfall in August
186
186 mm (7.3 inches) Monthly Rainfall in September
105
105 mm (4.1 inches) Monthly Rainfall in October
76
76 mm (3.0 inches) Monthly Rainfall in November
47
47 mm (1.9 inches) Monthly Rainfall in December
J F M A M J J A S O N D
Heat & Humidity / Chance of Frost
UV Index (Maximum)
17
17 Days with Frost in January
15
15 Days with Frost in February
11
11 Days with Frost in March
3
3 Days with Frost in April
-
No Heat & Humidity or Frost in May
L
Low Heat & Humidity in June
H
High Heat & Humidity in July
H
High Heat & Humidity in August
L
Low Heat & Humidity in September
-
No Heat & Humidity or Frost in October
4
4 Days with Frost in November
12
12 Days with Frost in December
J F M A M J J A S O N D
3
UV 3 (Moderate) in January
4
UV 4 (Moderate) in February
6
UV 6 (High) in March
8
UV 8 (Very High) in April
9
UV 9 (Very High) in May
10
UV 10 (Very High) in June
11
UV 11 (Extreme) in July
10
UV 10 (Very High) in August
8
UV 8 (Very High) in September
6
UV 6 (High) in October
4
UV 4 (Moderate) in November
3
UV 3 (Moderate) in December
J F M A M J J A S O N D
Sea Temperature (°C)
16
16 °C (61°F) Sea Temperature in January
15
15 °C (59°F) Sea Temperature in February
15
15 °C (59°F) Sea Temperature in March
16
16 °C (61°F) Sea Temperature in April
19
19 °C (66°F) Sea Temperature in May
22
22 °C (72°F) Sea Temperature in June
25
25 °C (77°F) Sea Temperature in July
27
27 °C (81°F) Sea Temperature in August
26
26 °C (79°F) Sea Temperature in September
23
23 °C (73°F) Sea Temperature in October
21
21 °C (70°F) Sea Temperature in November
18
18 °C (64°F) Sea Temperature in December
J F M A M J J A S O N D
Hiroshima Climate Guide (Historical Weather Averages), Japan
Elev: 0 m   Long: 132°26'E   Lat: 34°22'N
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