Wakayama Prefecture Free Weather Report 2025

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世界逆転宣言！【セカセン！】@sekai_gyakuten

🇯🇵 Wakayama Prefecture Weather Report – Month-by-Month Overview

🌨️ January
Cool and dry. Wakayama City averages 2 to 9°C. Snow is rare along the coast but may dust inland mountains. Skies are often clear, with brisk winds from the northwest. Ideal for visiting hot springs like Shirahama.

🌨️ February
Still chilly. Highs reach 8–11°C, with lows near 2°C. Occasional rain and overcast skies. Plum blossoms begin blooming in Minabe and Kishu, signaling the start of spring’s approach.

🌧️ March
Spring begins. Temperatures rise to 10–15°C. Rainfall increases, especially in coastal areas. Cherry blossoms start budding late in the month. Inland forests remain cool and damp.

🌸 April
Mild and blooming. Highs reach 15–21°C. Cherry blossoms peak in Wakayama Castle Park and along the Kinokawa River. Rain showers alternate with sunny spells. Forest trails become lush and vibrant.

🌼 May
Warm and pleasant. Temperatures climb to 19–25°C. Rainfall is light, and skies are mostly clear. Ideal for hiking in the Kumano Kodo pilgrimage trails and coastal visits to Shirahama Beach.

🌦️ June
Rainy season begins. Highs range from 22–28°C. Humidity rises, and afternoon showers are frequent. Rivers swell, and greenery flourishes. Fog may appear in mountainous areas.

🌧️ July
Hot and wet. Temperatures reach 26–32°C. Rainfall peaks early, then tapers off. Summer festivals begin, and evenings stay warm and muggy. Coastal breezes offer some relief.

☀️ August
Still hot. Highs remain between 27–33°C. Rain is infrequent, and sunshine dominates. Beaches are popular, and fireworks festivals light up the night skies. Inland areas feel humid.

🌧️ September
Transition to autumn. Temperatures ease to 23–29°C. Rain returns due to typhoon activity. Nights begin to cool, and early foliage appears in higher elevations. Harvest season begins in rural towns.

🍂 October
Cooler and clearer. Highs drop to 17–24°C. Rainfall decreases, and autumn colors peak in forests and temple grounds. Crisp air makes it ideal for travel and scenic drives.

🌫️ November
Chilly and damp. Highs hover around 12–19°C, with lows near 7°C. Rain is frequent, and fog blankets valleys. Early frosts appear in mountainous areas. Onsen towns grow popular.

🌨️ December
Winter returns. Temperatures range from 5 to 12°C. Snow is rare but possible inland. Coastal towns see more rain than snow. Illuminations brighten city streets and temple grounds.

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Weather in Wakayama, Japan: A Month-by-Month AnalysisWakayama, Japan, located on the Kii Peninsula in the Kansai region, experiences a humid subtropical climate (Köppen classification: Cfa), characterized by warm, humid summers, mild winters, and significant rainfall throughout the year. This report provides a detailed month-by-month analysis of Wakayama’s weather, including temperature, precipitation, humidity, daylight hours, and seasonal highlights, based on historical and recent climate data. The information is drawn from reliable sources such as Weather Atlas, Weather Spark, and other meteorological platforms.

JanuaryJanuary marks the heart of winter in Wakayama, with the coldest temperatures of the year. The average high is around 8.4°C (47.2°F), while the low dips to approximately 4.8°C (40.6°F). Sea temperatures average 16.3°C (61.3°F), making coastal activities less appealing. Precipitation is relatively low, with an average of 31.5 mm (1.24 inches) of rainfall across 7.3 days, the driest month of the year. Daylight hours are short, averaging 10.2 hours, with the shortest day on December 22 (9 hours, 52 minutes) influencing early January. Humidity averages 69.3%, and the sky is clear or partly cloudy 73% of the time, offering crisp but chilly days. This month is considered the least favorable for outdoor activities due to limited daylight and cool conditions.

FebruaryFebruary remains cold, with average highs of 9.1°C (48.4°F) and lows of 4.8°C (40.6°F). The sea temperature reaches its annual low of 15.6°C (60.1°F), the coldest for swimming. Rainfall slightly increases to 29.9 mm (1.18 inches) over 7.5 days, maintaining a dry trend. Daylight extends to 11 hours, and the sky is clear 66% of the time. Humidity is similar to January at 69.5%. While early spring hints appear with slightly longer days, February’s weather remains poor for tourism, particularly for sea-based activities, due to chilly temperatures and short daylight.

MarchMarch signals the transition to spring, with average highs rising to 12.3°C (54.1°F) and lows to 7.2°C (45.0°F). Sea temperatures slightly increase to 15.8°C (60.4°F). Precipitation rises to 38.0 mm (1.5 inches) over 7.6 days, reflecting the wetter spring season. Daylight hours increase to 12, and cloud cover rises, with skies clear only 56% of the time. Humidity remains around 69.3%. Cherry blossoms begin to bloom late in the month, enhancing Wakayama’s appeal for visitors seeking spring scenery, though the weather remains somewhat unpredictable.

AprilApril brings full spring vibrancy, with average highs of 16.6°C (61.8°F) and lows of 11.3°C (52.3°F). Sea temperatures rise to 17.1°C (62.8°F), signaling warmer coastal conditions. Rainfall increases to 40.4 mm (1.59 inches) over 7.8 days, and humidity edges up to 70.6%. Daylight extends to 13.1 hours, supporting longer outdoor exploration. Cloud cover is balanced, with skies clear 50% of the time. April’s pleasant temperatures and blooming cherry blossoms make it one of the best times to visit Wakayama, particularly for cultural festivals and sightseeing.

MayMay bridges spring and summer, with average highs of 21.1°C (70.0°F) and lows of 15.9°C (60.6°F). Sea temperatures climb to 19.8°C (67.6°F), suitable for early beach activities. Rainfall increases to 52.2 mm (2.05 inches) over 6.8 days, and humidity rises to 73.5%. Daylight reaches 14 hours, enhancing tourism opportunities. Cloud cover increases, with clear skies 44% of the time. May’s warm, pleasant weather and extended daylight make it ideal for exploring Wakayama’s coastal and cultural attractions.

JuneJune marks the onset of summer, with average highs of 23.9°C (75.1°F) and lows of 19.6°C (67.3°F). Sea temperatures soar to 23.5°C (74.3°F), ideal for water activities. However, June is the wettest month, with 73.8 mm (2.9 inches) of rainfall over 11.6 days, driven by the rainy season (tsuyu). Humidity peaks at 80.3%, and cloud cover is significant, with skies clear only 31% of the time. Daylight reaches its annual peak of 14.4 hours by late June. Despite the rain, June’s warm seas attract water enthusiasts, though outdoor plans may require flexibility.

JulyJuly is peak summer, with average highs of 27.5°C (81.5°F) and lows of 23.5°C (74.3°F). Sea temperatures hit 26.4°C (79.5°F), perfect for swimming. Rainfall peaks at 130.0 mm (5.12 inches) over 14.2 days, the highest of the year, reflecting the end of the rainy season. Humidity is high at 83.2%, and cloud cover remains significant (34% clear skies). Daylight slightly dips to 14.2 hours. July’s warm seas and vibrant atmosphere suit beachgoers, but frequent rain requires indoor alternatives.

AugustAugust is the hottest month, with average highs of 29.6°C (85.3°F) and lows of 25.3°C (77.5°F). Sea temperatures peak at 27.7°C (81.9°F), the warmest for swimming. Rainfall decreases to 85.9 mm (3.38 inches) over 13.4 days, but humidity remains high at 78.2%. Daylight averages 13.4 hours, and clear skies increase to 48%. August’s warm, sunny conditions (7.6 hours of daily sunshine) make it ideal for coastal activities, though heat and humidity can be intense.

SeptemberSeptember ushers in autumn, with average highs of 26.4°C (79.6°F) and lows of 22.0°C (71.6°F). Sea temperatures remain warm at 26.7°C (80.1°F). Rainfall is high at 80.3 mm (3.16 inches) over 11.5 days, partly due to typhoon season. Humidity averages 76.0%, and clear skies rise to 52%. Daylight drops to 12.3 hours. September’s pleasant temperatures and vibrant fall foliage make it a top time for tourism, though typhoon risks require caution.

OctoberOctober deepens autumn, with average highs of 21.4°C (70.5°F) and lows of 17.0°C (62.6°F). Sea temperatures cool to 24.3°C (75.7°F). Rainfall decreases to 61.6 mm (2.43 inches) over 7.2 days, and humidity drops to 73.5%. Daylight averages 11.3 hours, and clear skies dominate (65%). October’s mild weather, low humidity, and stunning foliage make it the best month for visiting Wakayama, ideal for hiking and cultural exploration.

NovemberNovember brings cooler autumn weather, with average highs of 16.2°C (61.2°F) and lows of 12.1°C (53.7°F). Sea temperatures drop to 21.9°C (71.4°F). Rainfall is minimal at 29.2 mm (1.15 inches) over 7 days, the driest month alongside February. Humidity averages 70.9%, and clear skies prevail (71%). Daylight reduces to 10.4 hours. November’s crisp, clear days are excellent for outdoor activities and enjoying fall colors.

DecemberDecember welcomes winter, with average highs of 10.7°C (51.3°F) and lows of 7.0°C (44.6°F). Sea temperatures fall to 19.1°C (66.4°F). Rainfall averages 36.8 mm (1.45 inches) over 9.2 days. Humidity is 70.7%, and skies are clearest (77%) of the year. Daylight drops to 9.9 hours, the shortest by late December. The festive atmosphere contrasts with chilly weather, making indoor cultural activities more appealing.

Seasonal Overview and RecommendationsWakayama’s climate offers distinct seasonal experiences. Spring (March–May) is ideal for cherry blossom viewing, with April and May offering pleasant temperatures and longer daylight. Summer (June–August) is warm and humid, best for beach activities, though June and July’s heavy rainfall requires planning. Autumn (September–November) is the prime tourism season, with October’s mild weather and vibrant foliage standing out. Winter (December–February) is cold and less ideal for outdoor activities, though clear skies and festive events provide charm. Visitors should prepare for significant rainfall year-round, especially in summer, and monitor typhoon risks in September.

This comprehensive analysis equips travelers and residents with a clear understanding of Wakayama’s weather patterns, aiding in planning activities and visits throughout the year.

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