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Contents
- The climate of Hamamatsu
- The best time to visit Hamamatsu
- The worst time to visit Hamamatsu
- Spring weather in Hamamatsu
- Summer weather in Hamamatsu
- Autumn weather in Hamamatsu
- Winter weather in Hamamatsu
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Hamamatsu
Situated in the island country of Japan, Hamamatsu falls under the Köppen climate classification 'Cfa', indicating a humid subtropical climate. This climate means there is no dry season in the city. A noticeable aspect of this tranquil city is its year-round weather fluctuation.
Throughout the year, the temperature varies between 3.2°C (37.8°F) and 29.2°C (84.6°F), creating a warm and temperate ambiance. The highest temperatures are typically observed in July and August, with an average peak of 29.2°C (84.6°F), while January witnesses the coolest conditions, with the mercury dipping to an average low of 3.2°C (37.8°F). Furthermore, the levels of relative humidity extend from 65% to 83%, with August demonstrating the highest humidity.
Meanwhile, rainfall distribution fluctuates throughout the year, ranging from a modest 37mm (1.46") in January to a maximum of 205mm (8.07") in July. No significant snowfall occurs; however, snowfall days can be expected in January and February, though these are quite rare with approximately only 0.1 and 0.2 possible days of snowfall respectively. The wind speed fluctuates from 12.2km/h (7.6mph) to 22.9km/h (14.2mph), with December displaying the highest wind speed.
The coastal city also boasts sea temperatures that range from 15.1°C (59.2°F) to an enjoyable 26.8°C (80.2°F), perfect for an afternoon swim during the warmer months. In addition, cloud cover varies moderately throughout the year, with cloud percentage reaching upwards of 42% in June.
Throughout the year, the temperature varies between 3.2°C (37.8°F) and 29.2°C (84.6°F), creating a warm and temperate ambiance. The highest temperatures are typically observed in July and August, with an average peak of 29.2°C (84.6°F), while January witnesses the coolest conditions, with the mercury dipping to an average low of 3.2°C (37.8°F). Furthermore, the levels of relative humidity extend from 65% to 83%, with August demonstrating the highest humidity.
Meanwhile, rainfall distribution fluctuates throughout the year, ranging from a modest 37mm (1.46") in January to a maximum of 205mm (8.07") in July. No significant snowfall occurs; however, snowfall days can be expected in January and February, though these are quite rare with approximately only 0.1 and 0.2 possible days of snowfall respectively. The wind speed fluctuates from 12.2km/h (7.6mph) to 22.9km/h (14.2mph), with December displaying the highest wind speed.
The coastal city also boasts sea temperatures that range from 15.1°C (59.2°F) to an enjoyable 26.8°C (80.2°F), perfect for an afternoon swim during the warmer months. In addition, cloud cover varies moderately throughout the year, with cloud percentage reaching upwards of 42% in June.
The best time to visit Hamamatsu
To make the most of the outdoor attractions and enjoyable weather conditions, consider visiting between September and November. During these months, the temperatures average between a comfortable 16.5°C (61.7°F) to 25.9°C (78.6°F). There might be rainfall, particularly in October with 162mm (6.38"); however, the humidity tends to be more manageable, ranging from 70% to 77%. In November, wind speeds average at 16.2km/h (10.1mph), adding to the pleasant outdoor ambiance.
The worst time to visit Hamamatsu
Considering the high humidity levels and heavy rainfall, the months of June to August could be less favorable for a visit to Hamamatsu. During these months, humidity levels reach 80% to 83%, and rainfall measures from 154mm (6.06") to 205mm (8.07"). The sea temperature does reach an inviting 25.8°C (78.4°F) to 26.8°C (80.2°F), but the intense rainfall and humidity might hinder outdoor activities.
Spring weather in Hamamatsu
Spring arrives in Hamamatsu from March to May. During this period, temperatures gradually increase from 12.6°C (54.7°F) to 21°C (69.8°F), creating a perfect backdrop for the blooming cherry blossoms. Relative humidity extends from 68% to 73%, while daylight hours begin increasing, offering between 12 hours to 14 hours of daylight. The spring rainfall measures between 88mm (3.46") in March to 115mm (4.53") in May.
Summer weather in Hamamatsu
Between June and August, Hamamatsu experiences a warm and humid summer. The relative humidity is particularly high during this season, ranging from 80% to 83%. The temperature averages from 23.7°C (74.7°F) to 29.2°C (84.6°F), with rainfall measuring from 154mm (6.06") to 205mm (8.07"). Despite the wet season, the sea temperature rises to a delightful 25.8°C (78.4°F) to 26.8°C (80.2°F).
Autumn weather in Hamamatsu
From September to November, autumn graces Hamamatsu with an enchanting display of changing foliage. Temperatures gradually decrease from 25.9°C (78.6°F) to 16.4°C (61.5°F), offering a more cooling climate. Rainfall levels range between 125mm (4.92") and 162mm (6.38"). Overall, autumn presents a picturesque setting for exploring the city's natural landscapes.
Winter weather in Hamamatsu
In Hamamatsu, winter sets in from December to February. During this season, temperatures taper from 10.8°C (51.4°F) to a chilly 3.2°C (37.8°F), with moderate humidity levels averaging between 65% and 69%. Despite minimal snowfall, the brisk winter air can be a refreshing contrast to the warmer months. The rainfall dips to 37mm (1.46") to 58mm (2.28"), making it the driest season of the year.
Weather in January
The Hamamatsu weather takes on varied hues in January, with crisp air and cool temperatures. Characterized by some of the lowest temperatures of the year, from a high of 8.5°C (47.3°F) to a low of 3.2°C (37.8°F), the month introduces the chilly season. Weather in January »
Weather in February
In February, the weather in Hamamatsu maintains a consistent cold trend, but with a slight increase from January's temperatures. There's a 2.1% increase in relative humidity from the previous month, indicating a rise in atmospheric moisture. Weather in February »
Weather in March
With blooms peeking out, March brings Hamamatsu a hint of spring's machination. The gradual escalation of temperature amidst March's refreshing breezes from a low of 6.3°C (43.3°F) signifies the transition from winter's end. Compared to February, this month brings an increase in rainfall, symbolizing the advent of the rainy season. Weather in March »
Weather in April
As the mild temperature of April greets Hamamatsu, it resembles the welcoming arms of spring. This month, compared to March, experiences a noticeable leap in temperature, reaching up to 16.5°C (61.7°F), indicative of the warmth creeping in. Weather in April »
Weather in May
May in Hamamatsu presents residents and visitors with the sweet allure of temperate weather. It signifies a seamless shift from the cool months to the warmer ones as temperatures ascend on average but stay below 23.7°C (74.7°F). A significant difference in rainfall from April illustrates the progression towards the wet season, while the sun continues to shine for longer intervals. Weather in May »
Weather in June
With the onset of June, Hamamatsu transitions into the hot, sultry summer days. The increase in maximum temperatures has become more apparent while the city experiences hints of summer's warmth. Compared to May, the increasing humidity level reaching up to 80% alongside a noticeable elevation in rainfall signals the initiation of the hydration cycle. Weather in June »
Weather in July
Steadily, Hamamatsu's weather shifts to warm, sultry July, reaching the peak of summer heat. The highest temperature of the year is observed with a high reaching up to 27.4°C (81.3°F). However, July also presents a higher frequency of rainy days compared to the preceding months. Weather in July »
Weather in August
Despite an apparent plateauing of temperatures, August announces the pinnacle of summer's sizzle in Hamamatsu with a maximum temperature going up to 29.2°C (84.6°F). In stark contrast to the preceding month, August records a decrease in rainfall, presenting partly cloudy skies. Weather in August »
Weather in September
September unveils Hamamatsu's gradual transition towards the cooler period of the year. A trend of declining temperatures, compared to August, foretells the forthcoming autumn month. A minor enhancement in rainfall accompanies the shift in season, mandating an umbrella's presence for outdoor expeditions. Weather in September »
Weather in October
October's arrival in Hamamatsu heralds the deeper stages of autumn, with a prominent drop in temperature. A stark increase in precipitation from September to 162mm (6.38") unveils October as a considerably wet month. While the city experiences fewer daylight hours, vibrant foliage stands out under the generously-spread sunlight. Weather in October »
Weather in November
The weather in November encapsulates Hamamatsu's progression into the colder months. Diminished temperature outlines the transition, with the average high temperature falling from the preceding month' warm autumn day to a cooler 16.4°C (61.5°F). Weather in November »
Weather in December
Come December, Hamamatsu embraces colder days and a touch of winter's chill. Temperature drops substantially from November's figures, leading to a crisp, chilly atmosphere in Hamamatsu. However, December applauds the decreasing trend in precipitation, leading to drier days. Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Hamamatsu?
In Hamamatsu, January registers the lowest temperatures, averaging 8.5°C (47.3°F) at the peak and 3.2°C (37.8°F) at the lowest.
What is the least humid month in Hamamatsu?
With an average relative humidity of 65%, January is the least humid month in Hamamatsu.
What is the driest month in Hamamatsu?
January is the month with the least rainfall in Hamamatsu, Japan. Rain falls for 5.9 days and accumulates 37mm (1.46") of precipitation.
How many days does it rain in Hamamatsu?
In Hamamatsu, Japan, during the entire year, the rain falls for 160.9 days and collects up to 1265mm (49.8") of precipitation.
When it does not snow in Hamamatsu?
In Hamamatsu, Japan, snow does not fall in January, March through December.
How many days does it snow in Hamamatsu?
Throughout the year, in Hamamatsu, there are 0.3 snowfall days, and 1mm (0.04") of snow is accumulated.
When is the lowest UV index in Hamamatsu?
January is the month with the lowest UV index, with an average maximum UV index of 2.
When does it snow in Hamamatsu?
February is the only month when snow falls.
When does it snow the most in Hamamatsu?
February is the month with the most snowfall in Hamamatsu, Japan. Snow falls for 0.2 days and accumulates 1mm (0.04") of snow.
What is the month with the least sunshine in Hamamatsu?
February has the least sunshine of the year, with an average of 6h of sunshine.
What month is the sea coldest in Hamamatsu?
With an average sea temperature of 15.1°C (59.2°F), March is the month with the coldest seawater.
When are the longest days in Hamamatsu?
With an average of 14h and 24min of daylight, June has the longest days of the year.
What is the most humid month in Hamamatsu?
With an average relative humidity of 83%, July is the most humid month in Hamamatsu.
What is the rainiest month in Hamamatsu?
July is the month with the most rainfall. Rain falls for 20.4 days and accumulates 205mm (8.07") of precipitation.
When is the highest UV index in Hamamatsu?
The months with the highest UV index are July and August, with an average maximum UV index of 7.
What part of the year is the hottest in Hamamatsu?
In Hamamatsu, August registers the highest temperatures, averaging 29.2°C (84.6°F) at the peak and 24.3°C (75.7°F) at the lowest.
What is the month with the warmest sea water in Hamamatsu?
August is the month with the warmest seawater in Hamamatsu, Japan, with an average sea temperature of 26.8°C (80.2°F).
What month has the most sunshine in Hamamatsu?
August has the most sunshine of the year in Hamamatsu, with an average of 11h of sunshine.
What is the month with the shortest days in Hamamatsu?
December has the shortest days of the year in Hamamatsu, Japan, with an average of 9h and 54min of daylight.
Is there Daylight Saving Time (DST) in Hamamatsu?
Hamamatsu does not utilize Daylight Saving Time (DST). JST timezone is used over the entire year.
Average temperature
Hamamatsu, Japan
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (8.5°C).
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (3.2°C).
Average pressure
Hamamatsu, Japan
- Average pressure in January:
1017.8mbar - Average pressure in February:
1018.2mbar - Average pressure in March:
1016.3mbar - Average pressure in April:
1014.6mbar - Average pressure in May:
1012.1mbar - Average pressure in June:
1009mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.1mbar - Average pressure in September:
1013mbar - Average pressure in October:
1016.3mbar - Average pressure in November:
1018.6mbar - Average pressure in December:
1017.7mbar
The month with the highest atmospheric pressure is November (1018.6mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed
Hamamatsu, Japan
- Average wind speed in January:
22.9km/h - Average wind speed in February:
20.6km/h - Average wind speed in March:
19.2km/h - Average wind speed in April:
17.4km/h - Average wind speed in May:
14.4km/h - Average wind speed in June:
12.7km/h
- Average wind speed in July:
12.2km/h - Average wind speed in August:
12.2km/h - Average wind speed in September:
13.6km/h - Average wind speed in October:
15.4km/h - Average wind speed in November:
16.2km/h - Average wind speed in December:
21.6km/h
The windiest month (with the highest average wind speed) is January (22.9km/h).
The calmest months (with the lowest average wind speed) are July and August (12.2km/h).
Average humidity
Hamamatsu, Japan
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is January (65%).
Average rainfall
Hamamatsu, Japan
- Average rainfall in January:
37mm - Average rainfall in February:
58mm - Average rainfall in March:
88mm - Average rainfall in April:
114mm - Average rainfall in May:
115mm - Average rainfall in June:
154mm
The wettest month (with the highest rainfall) is July (205mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days
Hamamatsu, Japan
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
8.1 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
12.2 days - Average rainfall days in June:
18.3 days
- Average rainfall days in July:
20.4 days - Average rainfall days in August:
19.3 days - Average rainfall days in September:
17.1 days - Average rainfall days in October:
15.5 days - Average rainfall days in November:
9.7 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is January (5.9 days).
Average snowfall
Hamamatsu, Japan
The month with the highest snowfall is February (1mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Hamamatsu, Japan
- Average snowfall days in January:
0.1 days - Average snowfall days in February:
0.2 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature
Hamamatsu, Japan
The best month for swimming (with the highest average sea temperature) is August (26.8°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).
Average daylight / Average sunshine
Hamamatsu, Japan
- Average daylight in January:
10h and 1min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
6h and 3min - Average sunshine in February:
6h - Average sunshine in March:
7h and 2min - Average sunshine in April:
9h - Average sunshine in May:
9h and 4min - Average sunshine in June:
9h
- Average sunshine in July:
9h and 2min - Average sunshine in August:
11h - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 5min - Average sunshine in November:
6h and 1min - Average sunshine in December:
6h and 2min
The month with the most sunshine is August (Average sunshine: 11h).
The month with the least sunshine is February (Average sunshine: 6h).
Average sunshine days
Hamamatsu, Japan
- Average sunshine days in January:
24.8 days - Average sunshine days in February:
19 days - Average sunshine days in March:
17.1 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
16.7 days - Average sunshine days in June:
10.2 days
- Average sunshine days in July:
9.4 days - Average sunshine days in August:
9.9 days - Average sunshine days in September:
10.4 days - Average sunshine days in October:
13.4 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
21.8 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is July (9.4 days).
Average UV index
Hamamatsu, Japan
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover
Hamamatsu, Japan
The month with the most cloud cover is June (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 25).
Average visibility
Hamamatsu, Japan
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
Hamamatsu, Japan
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