When is the best time to go to Ōkawa
The chart above shows the best time of year to visit Ōkawa, Japan. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Ōkawa
Ōkawa weather by month
Please note our recommendations for when to visit Ōkawa are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 9°C | 67mm | 3.9hrs | 11.1hrs | 17°C |
The weather in January in Ōkawa is characteristically cool and reasonably dry.
Based on weather alone, this is probably a time of year to avoid going to Ōkawa for your holidays. The weather is often not a good and not conducive to spending time outdoors.
January is in the winter in Ōkawa and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 10°C (49°F), whilst at night 1°C (35°F) is normal.
On average January is the driest month of the year in Ōkawa with around 67mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.9 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 10°C | 76mm | 4.4hrs | 11.9hrs | 16°C |
February in Ōkawa is generally reasonably dry with the temperature being cool.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Ōkawa.
February is in the winter in Ōkawa and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 11°C (51°F), whilst at night 2°C (36°F) is normal.
On average February is the 2nd driest month of the year in Ōkawa with around 76mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.4 hours of sunshine per day.
March
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 13°C | 113mm | 5.4hrs | 12.7hrs | 16°C |
The weather in March in Ōkawa is characteristically cool and damp.
Based on weather alone, this is probably a time of year to avoid going to Ōkawa for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
March is in the spring in Ōkawa and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 15°C (58°F), whilst at night 5°C (41°F) is normal.
On average March is the 3rd driest month of the year in Ōkawa with around 113mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.4 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 18°C | 161mm | 5.8hrs | 13.8hrs | 17°C |
Ōkawa's weather in April is typically mild and wet in nature.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Ōkawa.
April is in the spring in Ōkawa and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 20°C (69°F), whilst at night 10°C (50°F) is normal.
On average April is the 4th driest month of the year in Ōkawa with around 161mm 6.3 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 22°C | 182mm | 6.3hrs | 14.7hrs | 19°C |
May is a wet month in Ōkawa and the temperature is generally warm.
Although outside the main holiday season, there is still plenty of fairly acceptable weather around this time of year. This makes it an okay time to visit Ōkawa.
May is in the spring in Ōkawa and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 15°C (58°F) is normal.
On average May is the 5th driest month of the year in Ōkawa with around 182mm 7.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.3 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 25°C | 314mm | 5.1hrs | 11.1hrs | 22°C |
The climate in Ōkawa during June can be summarized as hot, humid and very wet.
Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Ōkawa.
June is in the summer in Ōkawa and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 19°C (66°F) is normal.
On average June is the 6th driest month of the year in Ōkawa with around 314mm 12.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.1 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 28°C | 335mm | 6hrs | 11.9hrs | 25°C |
July in Ōkawa is generally very wet with the temperature being hot.
Based on weather alone, this is probably a time of year to avoid going to Ōkawa for your holidays. The weather is often not a good and not conducive to spending time outdoors.
July is in the summer in Ōkawa and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 24°C (75°F) is normal.
On average July is the 6th wettest month of the year in Ōkawa with around 335mm 13.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 29°C | 176mm | 7.1hrs | 12.7hrs | 28°C |
The weather in August in Ōkawa is characteristically very hot, humid and wet.
Based on weather alone, this is probably a time of year to avoid going to Ōkawa for your holidays. The weather is often not a good and not conducive to spending time outdoors.
August is in the summer in Ōkawa and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (90°F), whilst at night 24°C (76°F) is normal.
On average August is the 5th wettest month of the year in Ōkawa with around 176mm 6.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.1 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 26°C | 176mm | 5.7hrs | 13.8hrs | 26°C |
Ōkawa's weather in September is typically hot, humid and wet in nature.
It is perhaps a good month to visit Ōkawa, with some surprisingly good weather at this time of year.
September is in the fall / autumn in Ōkawa and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 20°C (68°F) is normal.
On average September is the 4th wettest month of the year in Ōkawa with around 176mm 6.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.7 hours of sunshine per day.
October
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 21°C | 94mm | 6hrs | 14.7hrs | 24°C |
October is a a little damp month in Ōkawa and the temperature is generally warm.
It is perhaps the perfect month to visit Ōkawa, with some particularly good weather at this time of year.
October is in the fall / autumn in Ōkawa and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 13°C (56°F) is normal.
On average October is the 3rd wettest month of the year in Ōkawa with around 94mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 16°C | 72mm | 5hrs | 11.1hrs | 22°C |
Ōkawa's weather in November is typically mild and reasonably dry in nature.
It is perhaps a good month to visit Ōkawa, with some particularly good weather at this time of year.
November is in the fall / autumn in Ōkawa and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 8°C (46°F) is normal.
On average November is the 2nd wettest month of the year in Ōkawa with around 72mm 2.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
December
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 11°C | 49mm | 4.1hrs | 11.9hrs | 19°C |
December in Ōkawa is generally reasonably dry with the temperature being cool.
Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Ōkawa.
December is in the winter in Ōkawa and is typically the warmest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 3°C (38°F) is normal.
On average December is the wettest month of the year in Ōkawa with around 49mm 1.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.1 hours of sunshine per day.
Other monthly averages
Ōkawa weather stats
| Hottest month: | August | 32.2°C 90°F |
|---|---|---|
| Driest month: | December | 49mm 1.9ins |
| Sunniest month: | August | 7.1hrs |
| Coldest month: | January | 9.3°C 48.7°F |
| Wettest month: | July | 335mm 13.2ins |
| Warmest sea: | August | 27.7°C 81.9°F |
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