Climate Insights for Ama

Oki-gun, Shimane-ken, Japan

Hottest
August
27°C peak
Coldest
February
6°C low
Wettest
September
252mm rain
Best to Visit
May
Mild temps & low rain

Climate Overview

The climate in Ama is temperate. The average annual temperature is 16°C and approximately 1708mm of precipitation falls per year. Ama receives a notable amount of rainfall throughout the year, including during its driest month. Ama is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, December, when temperatures can drop to 6°C. Light snow can occur between January and December.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 9° Average: 8° Min: 6° Feb Max: 9° Average: 7° Min: 6° Mar Max: 11° Average: 10° Min: 9° Apr Max: 14° Average: 13° Min: 12° May Max: 18° Average: 17° Min: 16° Jun Max: 21° Average: 21° Min: 20° Jul Max: 25° Average: 25° Min: 24° Aug Max: 27° Average: 27° Min: 26° Sep Max: 25° Average: 24° Min: 23° Oct Max: 20° Average: 19° Min: 18° Nov Max: 16° Average: 15° Min: 13° Dec Max: 11° Average: 10° Min: 8°
Max
Average
Min

Temperatures in Ama vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 27°C. February is the coolest month, with minimum temperatures around 6°C and an average of 7°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 148mm Snow: 21mm Feb Precipitation: 122mm Snow: 15mm Mar Precipitation: 111mm Snow: 0mm Apr Precipitation: 127mm Snow: 0mm May Precipitation: 89mm Snow: 0mm Jun Precipitation: 173mm Snow: 0mm Jul Precipitation: 189mm Snow: 0mm Aug Precipitation: 156mm Snow: 0mm Sep Precipitation: 252mm Snow: 0mm Oct Precipitation: 125mm Snow: 0mm Nov Precipitation: 69mm Snow: 0mm Dec Precipitation: 148mm Snow: 6mm
Precipitation
Snow

Ama is a fairly wet location, receiving approximately 1708mm of precipitation annually, which averages out to around 142mm per month. The wettest month is September, averaging 252mm of rainfall. July and June also tend to see above-average precipitation. The driest month is November, with just 69mm. That's 182mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Light snowfall can occur between January and December, totalling around 42cm annually. January is the snowiest month with approximately 21cm.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 9km/h Feb Wind Speed: 8km/h Mar Wind Speed: 7km/h Apr Wind Speed: 7km/h May Wind Speed: 6km/h Jun Wind Speed: 5km/h Jul Wind Speed: 5km/h Aug Wind Speed: 6km/h Sep Wind Speed: 6km/h Oct Wind Speed: 7km/h Nov Wind Speed: 7km/h Dec Wind Speed: 8km/h
Wind Speed

Ama is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8km/h in winter, 7km/h in spring, 5km/h in summer, 7km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

93 days until Autumn

It is currently summer in Ama, which began on June 21, 2026. Ama is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 27°C, while the coldest stretch bottoms out in February near 6°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

Spring

Temperatures range from 9 to 18°C. Rainfall is heavy, totalling around 326mm across the season with a monthly average of 109mm. Winds are generally light, averaging 7km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 20 to 27°C. Rainfall is heavy, totalling around 519mm across the season with a monthly average of 173mm. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 13 to 25°C. Rainfall is heavy, totalling around 446mm across the season with a monthly average of 149mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 6 to 11°C. Rainfall is heavy, totalling around 417mm across the season with a monthly average of 139mm. Expect around 41cm of snow accumulation during this period. Winds are generally light, averaging 8km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan
Feb
Mar 10°
Apr 13°
May 17°
Jun 21°
Jul 25°
Aug 27°
Sep 24°
Oct 19°
Nov 15°
Dec 10°

The best time to visit Ama is during May, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 89mm per month. By contrast, August can be uncomfortably hot with highs reaching 27°C, while February is the coldest period with lows dropping to 6°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Ama based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
6 °C
9 °C
9 km/h
148 mm
21 cm
Feb
6 °C
9 °C
8 km/h
122 mm
15 cm
Mar
9 °C
11 °C
7 km/h
111 mm
0 cm
Apr
12 °C
14 °C
7 km/h
127 mm
0 cm
May
16 °C
18 °C
6 km/h
89 mm
0 cm
Jun Current
20 °C
21 °C
5 km/h
173 mm
0 cm
Jul
24 °C
25 °C
5 km/h
189 mm
0 cm
Aug
26 °C
27 °C
6 km/h
156 mm
0 cm
Sep
23 °C
25 °C
6 km/h
252 mm
0 cm
Oct
18 °C
20 °C
7 km/h
125 mm
0 cm
Nov
13 °C
16 °C
7 km/h
69 mm
0 cm
Dec
8 °C
11 °C
8 km/h
148 mm
6 cm
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