I used it in Brunei for 5 days. The speed was perfectly fine. The setup and activation process was smooth, and I could always see my remaining data allowance, so I could use it with peace of mind.
I've repurchased this product multiple times; I buy it almost every time I go to Japan. The receipt is sent over as soon as the order is placed. Installation is easy. During my recent visit to Okayama and Shikoku, the signal and speed were very stable.
You can enjoy a 360-degree panoramic view of Tokyo, including Shibuya Crossing and Yoyogi Park. On a clear day, you can even see Mount Fuji clearly. Going on a weekend morning is generally less crowded than peak times, although it's still quite busy. Professional photographers will take photos for you at the classic viewpoint (photos cost extra), and selfies are limited to one minute. There are many foreigners, and not all of them are polite, so please be mindful. A good day is essential. My itinerary also included a visit to Tokyo Skytree, but although it's tall, it was cloudy that day, and the view wasn't as good as Shibuya Skytree on a sunny day.
Spring (March–May): 6.7–15.9°C on average, the climate gradually changes from cold to warm. Cherry blossoms bloom in March and April, but cold air occasionally moves southward. Common activities: Cherry blossom viewing, outings, visiting museums. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): 20.4–25.2°C on average, the climate is warm and humid with abundant rainfall. Common activities: Swimming at the beach, mountain climbing, enjoying firework displays. Recommended clothing: Light and breathable clothing, rain gear.
Autumn (September–November): 9.6–22.2°C on average, the climate is comfortable and pleasant, cool and dry, with red maple leaves. Common activities: Maple leaf viewing, hot spring bathing, tasting autumnal delicacies. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Winter (December–February): 0.9–3.5°C on average, the climate is cold and dry, with occasional snowfall. Common activities: Skiing, hot spring trips, visiting indoor attractions. Recommended clothing: Warm coat, scarf, hat, gloves.
Japan climatological average
Annual average temperature: approx. 12.9°C / Annual rainfall: approx. 1306 mm / Summer humidity: 70%–80% / Rainiest month: June
Japan monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
0.9°C
23.6
February
2.1°C
45.3
March
6.7°C
93.5
April
12.5°C
112.1
May
15.9°C
163.8
June
20.4°C
182.5
July
25.2°C
174.2
August
25°C
174.9
September
22.2°C
169.6
October
15°C
78
November
9.6°C
57.6
December
3.5°C
31.3
Japan weather for the next seven days
4/1
Wednesday
Heavy rain
13.2°C/7.1°C
4/2
Thursday
Moderate rain
7.4°C/0.3°C
4/3
Friday
Sunny
13.3°C/-3°C
4/4
Saturday
Moderate rain
11.7°C/2°C
4/5
Sunday
Patchy rain nearby
15.4°C/6.6°C
4/6
Monday
Patchy rain nearby
16.3°C/6.8°C
4/7
Tuesday
Patchy rain nearby
15.4°C/7.9°C
KKday App
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