Monthly climate in Shiogama, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Shiogama features a humid subtropical climate (Cfa). Temperatures typically range between 3 °C (37 °F) and 25 °C (77 °F) through the year, but rarely can drop to -6 °C (22 °F) or can rise to as high as 32 °C (89 °F). The average annual precipitation amounts to about 1461 mm (57.5 inches) and receives 146 rainy days on the 1 mm (0.04 inches) threshold annually. Shiogama enjoys an average of 2893 hours of sunshine throughout the year, and daylight varies from 9 hours 31 minutes to 14 hours 46 minutes per day.

Monthly average temperatures in Shiogama, Japan

The warmest months in Shiogama are July, August and September, with daily mean temperatures ranging from 22 to 25 °C (72 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 5 °C (37 - 42 °F) throughout the day. On average each year, Shiogama experiences 39 days above 25 °C (77.0 °F) and 25 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Shiogama. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(55°F)
15°C
(59°F)
19°C
(66°F)
21°C
(70°F)
25°C
(77°F)
27°C
(80°F)
32°C
(89°F)
32°C
(89°F)
31°C
(87°F)
26°C
(79°F)
20°C
(67°F)
15°C
(60°F)
Mean maximum10°C
(50°F)
12°C
(54°F)
15°C
(60°F)
19°C
(67°F)
24°C
(75°F)
24°C
(75°F)
29°C
(85°F)
30°C
(87°F)
28°C
(83°F)
24°C
(76°F)
19°C
(67°F)
14°C
(57°F)
Average high5°C
(42°F)
6°C
(44°F)
10°C
(50°F)
13°C
(56°F)
18°C
(65°F)
21°C
(70°F)
25°C
(77°F)
27°C
(80°F)
24°C
(75°F)
19°C
(67°F)
14°C
(57°F)
8°C
(47°F)
Daily mean3°C
(37°F)
3°C
(38°F)
7°C
(44°F)
10°C
(51°F)
16°C
(61°F)
19°C
(67°F)
23°C
(74°F)
25°C
(77°F)
22°C
(72°F)
17°C
(62°F)
11°C
(52°F)
5°C
(42°F)
Average low1°C
(33°F)
1°C
(34°F)
4°C
(39°F)
7°C
(45°F)
13°C
(56°F)
17°C
(63°F)
22°C
(71°F)
23°C
(74°F)
20°C
(68°F)
14°C
(58°F)
8°C
(47°F)
3°C
(37°F)
Mean minimum-3°C
(26°F)
-3°C
(27°F)
0°C
(32°F)
2°C
(37°F)
8°C
(47°F)
14°C
(57°F)
18°C
(64°F)
20°C
(68°F)
15°C
(60°F)
9°C
(49°F)
3°C
(37°F)
-1°C
(31°F)
Minimum-5°C
(23°F)
-6°C
(22°F)
-1°C
(31°F)
2°C
(35°F)
7°C
(45°F)
12°C
(54°F)
17°C
(63°F)
17°C
(63°F)
13°C
(55°F)
8°C
(47°F)
-0°C
(32°F)
-2°C
(28°F)

Compare climate in Shiogama with other places

Compare temperature, precipitation, sunshine, UV index in Shiogama, Japan with other places around the world.

Monthly average precipitation in Shiogama, Japan

Shiogama usually has the most precipitation in July, August and October, with an average of 16 rainy days and 223 mm (8.8 inches) of precipitation per month. The driest months in Shiogama are January, February and November. On average, 44 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Shiogama. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)52 (2.0)42 (1.7)114 (4.5)113 (4.5)111 (4.4)99 (3.9)227 (8.9)213 (8.4)163 (6.4)229 (9.0)39 (1.5)58 (2.3)
Average precipitation days (≥ 1 mm)981112111319181412811

Monthly sunshine hours in Shiogama, Japan

The sunniest months in Shiogama are April, May and June, when the sun shines an average of 9 hours 16 minutes a day. Least sunny months in Shiogama: January, October and December receive an average of 6 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Shiogama. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours167221258271292280253271246209218203
Mean daily daylight hours9h 48m10h 44m11h 57m13h 11m14h 14m14h 46m14h 30m13h 35m12h 24m11h 10m10h 5m9h 31m

Solar UV radiation in Shiogama, Japan

Shiogama experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Shiogama UV Index data.

Average daily maximum UV levels by month for Shiogama. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)3478101011119643