Climate and monthly weather forecastShimabara, Japan
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Shimabara, Japan, with an average temperature fluctuating between 9.6°C (49.3°F) and 4.6°C (40.3°F). January stands out as Shimabara's coldest month, with an average high-temperature of 9.6°C (49.3°F) and a low-temperature of 4.6°C (40.3°F). Weather in January »Weather in February
The last month of the winter, February, is a cool month in Shimabara, Japan, with an average temperature fluctuating between 11.1°C (52°F) and 5.8°C (42.4°F). As February unfolds, the average high-temperature reaches a fresh 11.1°C (52°F), hinting at a slight fluctuation from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a mild month in Shimabara, Japan, with an average temperature ranging between min 8.1°C (46.6°F) and max 14°C (57.2°F). The beginning of March reveals an average high-temperature of a refreshing 14°C (57.2°F), showing minimal deviation from the previous month. Weather in March »Weather in April
April in Shimabara, Japan, is an enjoyable spring month, with an average temperature fluctuating between 18.1°C (64.6°F) and 11.8°C (53.2°F). As March gives way to April, the average high-temperature displays a slight ascent, adjusting from a mild 14°C (57.2°F) to an enjoyable 18.1°C (64.6°F). Weather in April »Weather in May
May, the last month of the spring in Shimabara, is an agreeable month, with an average temperature varying between 22.6°C (72.7°F) and 16.2°C (61.2°F). As Shimabara welcomes May, the average high-temperature sees a modest rise, transitioning from a comfortable 18.1°C (64.6°F) in April to an agreeable 22.6°C (72.7°F). Weather in May »Weather in June
June, the first month of the summer in Shimabara, is a warm month, with an average temperature ranging between min 19.9°C (67.8°F) and max 25°C (77°F). Shimabara's June showcases an average high-temperature of a warm 25°C (77°F), hardly distinct from May's 22.6°C (72.7°F). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Shimabara, Japan, with an average temperature fluctuating between 23.3°C (73.9°F) and 28°C (82.4°F). As July arrives, a slight rise in the average high-temperature is observed, moving from 25°C (77°F) in June to a still moderately hot 28°C (82.4°F). Weather in July »Weather in August
The last month of the summer, August, is a hot month in Shimabara, Japan, with temperature in the range of an average high of 30.3°C (86.5°F) and an average low of 24.8°C (76.6°F). Shimabara's August weather reaches an average high of 30.3°C (86.5°F) and an average low of 24.8°C (76.6°F), making it the warmest month. For August, the heat index is computed to be a very hot 38°C (100.4°F). Weather in August »Weather in September
September, the first month of the autumn in Shimabara, is still a warm month, with temperature in the range of an average low of 21.7°C (71.1°F) and an average high of 27.4°C (81.3°F). During September, Shimabara records an average high-temperature of a warm 27.4°C (81.3°F), marking a slight divergence from August's 30.3°C (86.5°F). Weather in September »Weather in October
October, the same as September, in Shimabara, Japan, is an agreeable autumn month, with an average temperature fluctuating between 22.6°C (72.7°F) and 17.3°C (63.1°F). Shimabara's weather subtly changes with the onset of October, barely falling from a moderately hot 27.4°C (81.3°F) in September to a pleasant 22.6°C (72.7°F). Weather in October »Weather in November
November, the last month of the autumn in Shimabara, is another comfortable month, with an average temperature fluctuating between 12.4°C (54.3°F) and 17.2°C (63°F). The arrival of November signals a shift in temperature, down from a pleasant 22.6°C (72.7°F) in October to a refreshing 17.2°C (63°F). Weather in November »Weather in December
The first month of the winter, December, is also a fresh month in Shimabara, Japan, with an average temperature ranging between max 11.4°C (52.5°F) and min 6.9°C (44.4°F). The start of December involves a temperature drop, moving from a refreshing 17.2°C (63°F) in November to a cool 11.4°C (52.5°F). Weather in December »Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January stands out as Shimabara's coldest month, with temperatures ranging between an average high of 9.6°C (49.3°F) and a low of 4.6°C (40.3°F).
The month with the least rainfall in Shimabara, Japan, is January, when the rain falls for 11.4 days and typically collects 28mm (1.1") of precipitation.
In Shimabara, Japan, during the entire year, the rain falls for 163.3 days and collects up to 865mm (34.06") of precipitation.
Months with snowfall in Shimabara, Japan, are January, February and December.
The month with the most snowfall in Shimabara, Japan, is January, when snow falls for 2.9 days and typically aggregates up to 6mm (0.24") of snow.
In Shimabara, during the entire year, snow falls for 5 days and aggregates up to 11mm (0.43") of snow.
The month with the least sunshine in Shimabara is January, with an average of 5h of sunshine.
The least humid month is March, with an average relative humidity of 70%.
March through November are months without snowfall in Shimabara, Japan.
March is the month with the coldest seawater, with an average sea temperature of 15.5°C (59.9°F).
With an average of 14h and 18min of daylight, June has the longest days of the year in Shimabara, Japan.
July is the most humid month, with an average relative humidity of 84%.
July is the month with the most rainfall. Rain falls for 19.5 days and accumulates 183mm (7.2") of precipitation.
July and August, with an average maximum UV index of 7, are months with the highest UV index in Shimabara, Japan.
August, noted for its average high-temperature of 30.3°C (86.5°F) and an average low-temperature of 24.8°C (76.6°F), is considered the warmest month in Shimabara.
August is the month with the warmest seawater in Shimabara, Japan, with an average sea temperature of 27.8°C (82°F).
With an average of 10.8h of sunshine, August has the most sunshine of the year in Shimabara, Japan.
December has the shortest days of the year in Shimabara, with an average of 10h and 0min of daylight.
Shimabara, Japan, does not observe Daylight Saving Time (DST). JST timezone is used over the entire year.
December is the month with the lowest UV index, with an average maximum UV index of 2.
Average temperature
Shimabara, Japan
The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (9.6°C).
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (4.6°C).
Average pressure
Shimabara, Japan
- Average pressure in January:
1021.9mbar - Average pressure in February:
1020.8mbar - Average pressure in March:
1018.4mbar - Average pressure in April:
1015.3mbar - Average pressure in May:
1012mbar - Average pressure in June:
1008.1mbar
- Average pressure in July:
1008.7mbar - Average pressure in August:
1008.5mbar - Average pressure in September:
1011.8mbar - Average pressure in October:
1016.4mbar - Average pressure in November:
1020.1mbar - Average pressure in December:
1021.4mbar
The month with the highest atmospheric pressure is January (1021.9mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).
Average wind speed
Shimabara, Japan
- Average wind speed in January:
12.3km/h - Average wind speed in February:
12.5km/h - Average wind speed in March:
12.5km/h - Average wind speed in April:
11.2km/h - Average wind speed in May:
9.2km/h - Average wind speed in June:
8.9km/h
- Average wind speed in July:
10.3km/h - Average wind speed in August:
9.5km/h - Average wind speed in September:
10.1km/h - Average wind speed in October:
12.2km/h - Average wind speed in November:
11.2km/h - Average wind speed in December:
12.5km/h
The windiest months (with the highest average wind speed) are February, March and December (12.5km/h).
The calmest month (with the lowest average wind speed) is June (8.9km/h).
Average humidity
Shimabara, Japan
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is March (70%).
Average rainfall
Shimabara, Japan
The wettest month (with the highest rainfall) is July (183mm).
The driest month (with the least rainfall) is January (28mm).
Average rainfall days
Shimabara, Japan
- Average rainfall days in January:
11.4 days - Average rainfall days in February:
11.7 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
10.2 days - Average rainfall days in June:
18.3 days
- Average rainfall days in July:
19.5 days - Average rainfall days in August:
17.9 days - Average rainfall days in September:
14.7 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
11.2 days - Average rainfall days in December:
12.4 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is October (9.8 days).
Average snowfall
Shimabara, Japan
The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Shimabara, Japan
- Average snowfall days in January:
2.9 days - Average snowfall days in February:
0.9 days - Average snowfall days in March:
0.1 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
1.1 days
The month with the highest number of snowfall days is January (2.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature
Shimabara, Japan
The best month for swimming (with the highest average sea temperature) is August (27.8°C).
The coldest month (with the lowest average sea temperature) is March (15.5°C).
Average daylight / Average sunshine
Shimabara, Japan
- Average daylight in January:
10h and 18min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 48min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
6h and 6min - Average sunshine in March:
7h and 12min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 24min - Average sunshine in June:
8h and 12min
- Average sunshine in July:
9h and 24min - Average sunshine in August:
10h and 48min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 36min - Average sunshine in November:
6h and 6min - Average sunshine in December:
5h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days
Shimabara, Japan
- Average sunshine days in January:
16.3 days - Average sunshine days in February:
13.7 days - Average sunshine days in March:
15.6 days - Average sunshine days in April:
15.6 days - Average sunshine days in May:
19.2 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
10.9 days - Average sunshine days in September:
13.4 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
16.7 days - Average sunshine days in December:
15.6 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (9.5 days).
Average UV index
Shimabara, Japan
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Shimabara, Japan
The month with the most cloud cover is June (Cloud cover 48).
The months with the least cloud cover are August and October (Cloud cover 30).
Average visibility
Shimabara, Japan
The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).
