I used this eSIM card in Croatia, Montenegro, Slovenia, Hungary, and Austria. The reception was excellent 90% of the time, and the phone function was very convenient. The reception was only slightly poor in mountainous areas or when traveling on trains in remote regions. I initially chose the global SIM card because I was going to Montenegro. If the countries you're visiting are all within the eSIM card's coverage area, you can buy the eSIM card.
By completing a simple setup before leaving Japan, I was able to use the internet without any problems during my trip.
This time, I visited Munich in Germany and Barcelona, Madrid, Toledo, and Malaga in Spain for about a week, and I was able to use it without any issues in all of them!
Basically, I only used it to look at maps and do some research on Instagram, but it was very fast and comfortable.
The price was also reasonable, and I would really recommend it to anyone planning a trip to Europe ;)
The process was simple and quick, but it was disappointing that I couldn't change the date. It's convenient because it can be used in several European countries.
Anonymous user
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Best time to visit Poland
Data source:Meteostat Last updated:2025-09
Weather in Poland throughout the year
Spring (March–May): Average 5.1–14.7°C, gradually warming climate, moderate rainfall, suitable for hiking and flower viewing. Common activities: Hiking, visiting historical sites. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): Average 18.7–20.5°C, higher temperatures, more rainfall, especially in August. Common activities: Water activities, outdoor picnics, city sightseeing. Recommended clothing: Light and breathable clothing, sun hat, rain gear.
Autumn (September–November): Average 16.0–4.6°C, gradually decreasing temperatures, less rainfall, pleasant autumn weather. Common activities: Viewing autumn leaves, city sightseeing. Recommended clothing: Light jacket, comfortable trousers, warm clothing.
Winter (December–February): Average 2.2–3.9°C, cold temperatures, higher probability of snowfall, rain and snow alternating. Common activities: Skiing, indoor activities. Recommended clothing: Thick coat, warm clothing, waterproof boots.
Weather in Poland
Annual average temperature: approx. 10.6°C / Annual rainfall: approx. 622 mm / Summer humidity: 60%–70% / Rainiest month: August
Poland weather by month
Month
Temperature (°C)
Rainfall (mm)
January
1.7°C
50.7
February
3.9°C
59
March
5.1°C
39
April
8.9°C
49.1
May
14.7°C
36.2
June
18.7°C
65.9
July
20°C
70.2
August
20.5°C
89.5
September
16°C
34.3
October
10.9°C
38.1
November
4.6°C
34.6
December
2.2°C
55.6
7-day weather forecast for Poland
11/1
Sunday
Sunny
10.2°C/2.6°C
11/2
Monday
Overcast
8.2°C/5.3°C
11/3
Tuesday
Overcast
9.2°C/3.2°C
11/4
Wednesday
Sunny
8.9°C/1.9°C
11/5
Thursday
Smoky haze
9.6°C/0.8°C
11/6
Friday
Partly Cloudy
9.6°C/2.7°C
11/7
Saturday
Partly Cloudy
7.9°C/0.7°C
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