Having lived in Japan for two years, seeing such a vast expanse of nemophila flowers and a 160-year-old wisteria in person was even more breathtaking than the photos! I highly recommend this trip to anyone visiting Japan during the blooming season! Our guide, Jimmy, was incredibly kind and helpful, providing thoughtful reminders at every point, clearly indicating the route, meeting points, and times. Our group members were all punctual, quiet, and well-behaved. I will definitely visit again next year.
On April 11, 2026, the flowers were about 70% in bloom. Walking towards the park, at first glance, it looked like the sea, but upon closer inspection, it was a dreamy sea of pink butterfly flowers. Remember to prepare cash; buying tickets for the tour guide will speed up entry. Those who don't eat seafood at the fish market can enjoy burgers and ice cream on the second floor selling fruits and vegetables. According to Kkday, the departure time from Tokyo Station is 8:00 AM. You will receive a letter from the travel agency the night before stating 8:30 AM; please meet 10-15 minutes before the actual departure time in the letter. The return trip to Tokyo Station on Saturday takes 2.5 hours.
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Oarai Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Oarai year round climate
Spring (March–May): 9.1–18.1°C on average, mild climate but with relatively high rainfall, especially in April and May. Common activities: seaside walks, flower viewing (depending on blooming conditions). Recommended clothing: light jacket, comfortable long pants or skirt.
Summer (June–August): 22.1–27.6°C on average, hot and humid, with rainfall concentrated in June. Common activities: swimming, surfing, seaside holidays. Recommended clothing: light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): 12.4–24.8°C on average, comfortable and pleasant climate, but with relatively high rainfall in September. Common activities: outdoor walks, sightseeing. Recommended clothing: light jacket, long-sleeved shirt.
Winter (December–February): 3.9–6.0°C on average, cold and dry, with low rainfall. Common activities: onsen experience, indoor leisure activities. Recommended clothing: warm jacket, hat, scarf, gloves.
Oarai climatological average
Annual average temperature: approx. 15.7°C / Annual rainfall: approx. 1421 mm / Summer humidity: 70%–80% / Rainiest month: June
Oarai monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
3.9°C
32.3
February
5°C
53
March
9.1°C
109.3
April
14.7°C
105.7
May
18.1°C
160.3
June
22.1°C
225
July
26.9°C
130.7
August
27.6°C
155.7
September
24.8°C
209.7
October
17.5°C
128.7
November
12.4°C
88.3
December
6°C
22.8
Oarai weather for the next seven days
5/14
Thursday
Patchy rain nearby
19.4°C/12.5°C
5/15
Friday
Partly Cloudy
18.2°C/12.5°C
5/16
Saturday
Sunny
23.4°C/13.2°C
5/17
Sunday
Sunny
23°C/16.2°C
5/18
Monday
Patchy rain nearby
22.9°C/15.8°C
5/19
Tuesday
Partly Cloudy
23.5°C/16.4°C
5/20
Wednesday
Cloudy
16.5°C/14.5°C
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