July weather forecast
Fukuoka, Japan

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Weather in July

The intensified weather in Fukuoka during July marks the peak of summer. Traditional street celebrations are frequent, in spite of the high heat and increased rainfall. The city witnesses a surge in temperature, soaring to a whopping 30.7°C (87.3°F). Sea temperatures also rise, making beach-related activities full of fun. The transition into August promises continued hot weather, albeit with reduced rainfall.

Temperature

A subtle rise in the average high-temperature is observed in Fukuoka during July, adjusting from a warm 26.5°C (79.7°F) in June to a tropical 30.7°C (87.3°F). During the month of July, Fukuoka's nighttime temperature lowers to an average of 24°C (75.2°F).

Heat index

July's heat index is calculated to be a very hot 38°C (100.4°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In July, the average relative humidity in Fukuoka is 75%.

Rainfall

In July, the rain falls for 11.9 days. Throughout July, 266mm (10.47") of precipitation is accumulated. In Fukuoka, Japan, during the entire year, the rain falls for 128.6 days and collects up to 1632mm (64.25") of precipitation.

Snowfall

In Fukuoka, snow does not fall in April through December.

Sea temperature

In July, the average sea temperature is 25.4°C (77.7°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

In Fukuoka, the average length of the day in July is 14h and 8min.
On the first day of the month, sunrise is at 05:11 and sunset at 19:32. On the last day of July, sunrise is at 05:30 and sunset at 19:19 JST.

Sunshine

In July, the average sunshine is 5.9h.

UV index

The month with the highest UV index in Fukuoka is July, with an average maximum UV index of 11. A UV Index reading of 11, and higher, represents an excessive health risk from unsafe exposure to UV radiation for the average person.
Note: In July, the maximum UV index of 11 suggests this advice:
Put into effect every precaution of importance, unprotected skin and eyes may get burns swiftly. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Always opt for UVA and UVB-resistant sunglasses on radiant days. Despite the clouds, sunscreen with an SPF of at least 30 should be used liberally and reapplied frequently, especially after a swim or outdoor workout. Attention! The reflection of both water and sand can increase the intensity of UV rays.

Frequently asked questions

How hot is July in Fukuoka?

In July, in Fukuoka, the average high-temperature is 30.7°C (87.3°F), and the average low-temperature is 24°C (75.2°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in July is calculated to be 38°C (100.4°F).

What is the average humidity in July in Fukuoka?

The average relative humidity in July in Fukuoka is 75%.

How many days does it rain in July in Fukuoka?

In Fukuoka, Japan, in July, it is raining for 11.9 days, with typically 266mm (10.47") of accumulated precipitation.

When it does not snow in Fukuoka?

April through December are months without snowfall in Fukuoka.

What is the sea water temperature in July in Fukuoka?

In Fukuoka, Japan, the average seawater temperature in July is 25.4°C (77.7°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in July in Fukuoka?

The average day length in July in Fukuoka, Japan, is 14h and 8min.

When are sunrise and sunset in July in Fukuoka?

In July, on the first day of the month, sunrise is at 05:11 and sunset at 19:32. On the last day of the month, in Fukuoka, sunrise is at 05:30 and sunset at 19:19 JST.

How long on average sun shines in July in Fukuoka?

The average sunshine duration in July in Fukuoka is 5.9h.

What is the month with the highest UV index in Fukuoka?

The month with the highest UV index is July, with an average maximum UV index of 11.

What is the UV index intensity in July in Fukuoka?

In Fukuoka, Japan, the average daily maximum UV index in July is 11. A UV Index of 11, and more, symbolizes an extreme health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average UV index

Average temperature in July
Fukuoka, Japan

Average temperature in July - Fukuoka, Japan
  • Average high temperature in July: 30.7°C

The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (9.8°C).

  • Average low temperature in July: 24°C

The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is January (3.2°C).

Average humidity in July
Fukuoka, Japan

Average humidity in July - Fukuoka, Japan
  • Average humidity in July: 75%

The month with the highest relative humidity is June (76%).
The months with the lowest relative humidity are January and February (64%).

Average rainfall in July
Fukuoka, Japan

Average rainfall in July - Fukuoka, Japan
  • Average rainfall in July: 266.4mm

The wettest month (with the highest rainfall) is June (272.1mm).
The driest month (with the least rainfall) is December (53.8mm).

Average rainfall days in July
Fukuoka, Japan

Average rainfall days in July - Fukuoka, Japan
  • Average rainfall days in July: 11.9 days

The month with the highest number of rainy days is March (12.9 days).
The month with the least rainy days is October (7.3 days).

Average snowfall in July
Fukuoka, Japan

Average snowfall in July - Fukuoka, Japan
  • Average snowfall in July: 0mm

The months with the highest snowfall are January and February (20mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in July
Fukuoka, Japan

Average snowfall days in July - Fukuoka, Japan
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature in July
Fukuoka, Japan

Average sea temperature in July - Fukuoka, Japan
  • Average sea temperature in July: 25.4°C

The best month for swimming (with the highest average sea temperature) is August (27.7°C).
The coldest month (with the lowest average sea temperature) is March (14.2°C).

Average daylight in July /
Average sunshine in July
Fukuoka, Japan

Average daylight in July / Average sunshine in July - Fukuoka, Japan
  • Average daylight in July: 14h and 1min

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 July: 5h and 5min

The month with the most sunshine is August (Average sunshine: 6h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average UV index in July
Fukuoka, Japan

Average UV index in July - Fukuoka, Japan
  • Average UV index in July: 11

The month with the highest UV index is July (UV index 11).
The months with the lowest UV index are January and December (UV index 3).

Fukuoka, Japan

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