Country Overview For Japan
The climate in Japan is typically varies from tropical in south to cool temperate in north. The terrain: mostly rugged and mountainous. For Tokyo in January the daily average maximum temperatures is 9°C with the average minimum 3°C, while in June the average maximum is 26°C with a minimum of 22°C. The wettest month for Tokyo is January with an average of 0.0mm of precipitation falling while the driest month is January with 0.0mm falling.
HISTORICAL MONTHLY AVERAGES FOR JANUARY
The information presented below gives detailed historical monthly average weather conditions along with exceptional weather occurrences. To maintain relevance to current weather trends the displayed information has been calculated using data collected over the past two decades. The climate profile is taken from closest available data source to Shimoji-Shima Island.
Throughout the month of January daytime temperatures will generally reach highs of around 20°C that's about 69°F. At night the average minimum temperature drops down to around 17°C, that's 62°F.
In recent times the highest recorded temperature in January has been 26°C that's 79°F, with the lowest recorded temperature 9°C, about 48°F.
The average daily relative humidity for January is around 71%.
The Heat Index is a measure of how hot it feels when relative humidity is added to actual air temperature. From this a comfort level is calculated providing categories on how heat conditions might adversely affect someone.
Comfort Levels: Given average maximum temperatures and humidity levels generally you should not anticipate any discomfort from heat (see heat index for more information).
The average daily wind speed in January has been around 29 km/h, that’s the equivalent to about 18 mph, or 16 knots. In recent years the maximum sustained wind speed has reached 80 km/h, that’s the equivalent of around 49 mph, or 43 knots.
On average the month of January is not affected by foggy conditions.
YEARLY TRENDS: WEATHER AVERAGES & EXTREMES
The following charts show yearly weather trends with information on monthly weather averages and extremes.
The chart below plots the average high and low temperature for each month of the year. It also shows the maximum and minimum recorded temperatures.
The chart below plots the average number of days in any month that you can expect to see rain falling.
The chart below plots the average daily wind speed you can expect for any month. It also shows the maximum recorded sustained wind speed for each month.