Katsuta, Ibaraki Weather by Month and Climate Averages

How much rain does Katsuta get?

Katsuta gets 1250 mm of precipitation in an average year, spread over about 102 days with measurable rain. That is fewer rainy days than 72% of Japan.

September is the wettest month, with 185 mm. December is the driest, with 42 mm. June has the most rainy days, about 12.

The longest dry spell in the last five years lasted 41 days, to February 6, 2026.

Katsuta weather by month

Katsuta weather in January

In January, Katsuta averages a high of 9°C and a low of -3°C. It gets 43 mm of precipitation over about 4 rainy days. The sun is out about 59% of daylight hours. The January record high is 18°C (1996) and the record low is -11°C (1970).

Katsuta weather in February

In February, Katsuta averages a high of 10°C and a low of -2°C. It gets 47 mm of precipitation over about 6 rainy days. The sun is out about 56% of daylight hours. The February record high is 24°C (2009) and the record low is -10°C (1984).

Katsuta weather in March

In March, Katsuta averages a high of 13°C and a low of 1°C. It gets 93 mm of precipitation over about 9 rainy days. The sun is out about 43% of daylight hours. The March record high is 25°C (2007) and the record low is -8°C (1977).

Katsuta weather in April

In April, Katsuta averages a high of 18°C and a low of 6°C. It gets 105 mm of precipitation over about 10 rainy days. The sun is out about 40% of daylight hours. The April record high is 29°C (2015) and the record low is -3°C (1978). April is one of the most comfortable months to visit.

Katsuta weather in May

In May, Katsuta averages a high of 22°C and a low of 12°C. It gets 132 mm of precipitation over about 10 rainy days. The sun is out about 29% of daylight hours. The May record high is 33°C (2019) and the record low is 2°C (1991). May is one of the most comfortable months to visit.

Katsuta weather in June

In June, Katsuta averages a high of 25°C and a low of 17°C. It gets 132 mm of precipitation over about 12 rainy days. The sun is out about 23% of daylight hours. The June record high is 36°C (2022) and the record low is 9°C (2010). June is one of the most comfortable months to visit.

Katsuta weather in July

In July, Katsuta averages a high of 29°C and a low of 21°C. It gets 125 mm of precipitation over about 11 rainy days. The sun is out about 25% of daylight hours. The July record high is 38°C (1997) and the record low is 8°C (2026).

Katsuta weather in August

In August, Katsuta averages a high of 30°C and a low of 22°C. It gets 103 mm of precipitation over about 8 rainy days. The sun is out about 34% of daylight hours. The August record high is 38°C (1996) and the record low is 13°C (1980).

Katsuta weather in September

In September, Katsuta averages a high of 27°C and a low of 18°C. It gets 185 mm of precipitation over about 11 rainy days. The sun is out about 29% of daylight hours. The September record high is 37°C (2000) and the record low is 8°C (1992).

Katsuta weather in October

In October, Katsuta averages a high of 21°C and a low of 12°C. It gets 169 mm of precipitation over about 9 rainy days. The sun is out about 39% of daylight hours. The October record high is 33°C (1979) and the record low is 1°C (1984). October is one of the most comfortable months to visit.

Katsuta weather in November

In November, Katsuta averages a high of 16°C and a low of 5°C. It gets 73 mm of precipitation over about 7 rainy days. The sun is out about 56% of daylight hours. The November record high is 26°C (1977) and the record low is -4°C (1976).

Katsuta weather in December

In December, Katsuta averages a high of 12°C and a low of 0°C. It gets 42 mm of precipitation over about 5 rainy days. The sun is out about 63% of daylight hours. The December record high is 25°C (2004) and the record low is -8°C (1973).

Sunshine, humidity and wind in Katsuta

December is the sunniest month in Katsuta, with sunshine about 63% of daylight hours. June is the cloudiest, at 23%. Over the year the sun shines about 41% of daylight hours. Katsuta is sunnier than 73% of Japan.

Humidity peaks in July at 84% and is lowest in February at 60%.

Katsuta has about 16 days a year above 32°C. Katsuta is cooler than 59% of Japan.

First and last freeze in Katsuta

The first fall freeze in Katsuta typically comes around November 26, and the last spring freeze around March 30. That leaves a frost-free growing season of about 241 days.

Katsuta weather records

The hottest temperature on record at the Katsuta station is 38°C, on August 15, 1996. The coldest is -11°C, on January 17, 1970.

The wettest day on record brought 244 mm of rain, on August 4, 1986.

38 all-time records have been set at the station since 1970.

The best time to visit Katsuta

The most comfortable time to visit is typically April to June and October, when daytime highs sit near 22°C.

Winter (December–February) is chilly, with average highs around 10°C and lows near -2°C.

Spring (March–May) is mild, with average highs around 18°C and lows near 6°C.

Summer (June–August) is hot, with average highs around 28°C and lows near 20°C. It can feel humid.

Autumn (September–November) is warm, with average highs around 21°C and lows near 12°C.

Katsuta climate questions

How much rain does Katsuta get?

Katsuta gets 1250 mm of precipitation in an average year, over about 102 rainy days.

What is the wettest month in Katsuta?

September is the wettest month in Katsuta, with 185 mm. December is the driest, with 42 mm.

How many rainy days does Katsuta have a year?

Katsuta has about 102 days with measurable rain in an average year. June has the most, about 12.

What is the hottest month in Katsuta?

August is the warmest month in Katsuta, with an average high of 30°C.

What is the coldest month in Katsuta?

January is the coldest month in Katsuta, with an average low of -3°C.

What is the record high temperature in Katsuta?

The record high at the Katsuta station is 38°C, set on August 15, 1996. The record low is -11°C, on January 17, 1970.

What is the sunniest month in Katsuta?

December is the sunniest month in Katsuta, with sunshine about 63% of daylight hours. June is the cloudiest.

When is the first frost in Katsuta?

The first fall freeze in Katsuta typically comes around November 26. The last spring freeze is around March 30.

What is the best time to visit Katsuta?

The most comfortable time to visit is typically April to June and October, when daytime highs sit near 22°C.