Sandachō climate
Sandachō (Japan) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 14 °C57 °F, and about 1,553 mm61 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Sandachō climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 643 | −229 | 236 | 913.6 | 26 |
| Feb | 846 | −130 | 338 | 903.6 | 22 |
| Mar | 1254 | 134 | 744 | 1084.3 | 13 |
| Apr | 1864 | 643 | 1254 | 1114.4 | 1 |
| May | 2373 | 1253 | 1763 | 1285.0 | 0 |
| Jun | 2679 | 1762 | 2170 | 1686.6 | 0 |
| Jul | 2985 | 2271 | 2578 | 1997.8 | 0 |
| Aug | 3086 | 2272 | 2679 | 1335.2 | 0 |
| Sep | 2680 | 1865 | 2272 | 1877.4 | 0 |
| Oct | 2170 | 1253 | 1661 | 1425.6 | 0 |
| Nov | 1559 | 642 | 1051 | 903.6 | 1 |
| Dec | 948 | 033 | 540 | 1054.1 | 15 |
| Year | 3086 | −229 | 1457 | 1,55361 | 77 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 87% | 70% | 2.3 | 10:03 |
| Feb | 84% | 69% | 3.0 | 10:53 |
| Mar | 81% | 65% | 4.0 | 11:52 |
| Apr | 79% | 64% | 4.8 | 13:01 |
| May | 80% | 67% | 5.3 | 13:59 |
| Jun | 84% | 79% | 4.8 | 14:29 |
| Jul | 86% | 73% | 4.9 | 14:17 |
| Aug | 84% | 62% | 5.2 | 13:27 |
| Sep | 85% | 68% | 4.1 | 12:21 |
| Oct | 84% | 63% | 3.3 | 11:14 |
| Nov | 85% | 60% | 2.6 | 10:17 |
| Dec | 87% | 65% | 2.1 | 9:49 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Sandachō is like
The warmest month is August, with an average high of 30 °C86 °F and a low of 22 °C72 °F. The coldest is January, when highs average 6 °C43 °F and lows −2 °C29 °F. Seasons are strongly marked: the warmest month is on average 23.9 °C43.1 °F warmer than the coldest.
It is wet, with about 1,553 mm61 in of precipitation per year. The wettest three-month stretch is July–September, which brings 33% of the annual total. The wettest month is July (199 mm7.8 in), the driest is February (90 mm3.6 in).
Relative humidity ranges from 79% in April to 87% in December. The clearest skies (lowest average cloud amount, 60%) are typical of November. Average wind speed near the ground ranges from 6 km/h (4 mph) in August to 8 km/h (5 mph) in March. Daylight lasts from about 9.8 hours in December to 14.5 hours in June.
A lasting snow cover is typical in January and February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 13 cm).
Best time to visit Sandachō
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and October: average highs of 21 °C70 °F to 23 °C73 °F with 128 mm5.0 in to 142 mm5.6 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 6 °C43 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Sandachō
- Winter (December–February) — highs 643 to 9 °C48 °F, lows −229 to 0 °C33 °F, about 95 mm3.8 in of precipitation a month. Pack a warm coat, layers and closed shoes, shoes with good grip, as frost is common and an umbrella or light rain jacket.
- Spring (March–May) — highs 1254 to 23 °C73 °F, lows 134 to 12 °C53 °F, about 116 mm4.6 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Summer (June–August) — highs 2679 to 30 °C86 °F, lows 1762 to 22 °C72 °F, about 167 mm6.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1559 to 26 °C80 °F, lows 642 to 18 °C65 °F, about 140 mm5.5 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
How Sandachō compares
Compared with Kobe, about 22 km to the south, Sandachō is on average 2.6 °C4.6 °F cooler and receives a similar amount of precipitation. The difference is largest in December (4.3 °C7.8 °F cooler).
Of the 111 places in Japan covered by World Climates, Sandachō is the 79th warmest by annual mean temperature and the 71st wettest by annual precipitation. See all of them on the Japan climate page.
Places in other countries with the most similar temperature and rainfall pattern: Atlantic City (United States, Cfa), Washington (United States, Cfa) and Richmond (United States, Cfa).
Nearby places
- Kobe 22 km · 17 °C62 °F · 1,526 mm60 in
- Osaka 33 km · 16 °C60 °F · 1,753 mm69 in
- Hirakata 39 km · 15 °C59 °F · 1,657 mm65 in
- Himeji 49 km · 15 °C59 °F · 1,553 mm61 in
- Kyoto 50 km · 15 °C59 °F · 1,657 mm65 in
- Kusatsu 69 km · 14 °C58 °F · 1,674 mm66 in
- Minato 75 km · 18 °C64 °F · 1,825 mm72 in
- Hikone 102 km · 14 °C58 °F · 1,865 mm73 in
Frequently asked questions
What is the warmest month in Sandachō?
August is the warmest month in Sandachō, with an average high of 30 °C (86 °F) and an average low of 22 °C (72 °F).
What is the coldest month in Sandachō?
January is the coldest month, with an average high of 6 °C (43 °F) and an average low of -2 °C (29 °F).
When does it rain the most in Sandachō?
July is the wettest month with about 199 mm (7.8 in) of precipitation; February is the driest with about 90 mm (3.6 in).
What is the best time to visit Sandachō?
Judging by long-term averages, the most comfortable months are May and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 212 m, while Sandachō lies at about 147 m. Temperatures on this page were therefore adjusted by +0.4 °C0.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.