Weather in Japan for May 2025
In general, the average temperature in Japan at the beginning of May is 22.1 °C. As the month progressed, temperatures tended to remain steady, reaching an average of 22.1 °C by the end of May.
Japan sees moderate rainfall in May, averaging 10 rainy days.
Is May a good time to visit Japan? check out the best time to travel to Japan page.
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Japan in May average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  20° | 2  20° | 3  21° | 4 24° | |||
| 5 25° | 6  24° | 7  21° | 8 17° | 9 17° | 10 22° | 11 21° |
| 12 21° | 13 19° | 14 20° | 15 18° | 16 24° | 17 25° | 18 28° |
| 19 23° | 20 21° | 21  25° | 22 24° | 23 20° | 24 24° | 25 22° |
| 26 22° | 27 24° | 28 23° | 29  22° | 30 23° | 31 19° |
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Temperatures trend during May in Japan
May weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Patchy rain possible | 20° /13° | 15.2 mm | 5 | |
| 2 May | Sunny | 20° /11° | 1.9 mm | 5 | |
| 3 May | Overcast | 21° /12° | 0 mm | 6 | |
| 4 May | Sunny | 24° /15° | 0 mm | 6 | |
| 5 May | Overcast | 25° /17° | 0 mm | 6 | |
| 6 May | Partly cloudy | 24° /17° | 0 mm | 7 | |
| 7 May | Moderate or heavy rain shower | 21° /15° | 17.2 mm | 5 | |
| 8 May | Moderate or heavy rain shower | 17° /11° | 27.3 mm | 4 | |
| 9 May | Overcast | 17° /10° | 2.7 mm | 4 | |
| 10 May | Sunny | 22° /12° | 0 mm | 6 | |
| 11 May | Moderate or heavy rain shower | 21° /14° | 3.7 mm | 5 | |
| 12 May | Overcast | 21° /15° | 0 mm | 5 | |
| 13 May | Moderate or heavy rain shower | 19° /15° | 23.1 mm | 5 | |
| 14 May | Patchy rain possible | 20° /15° | 1.6 mm | 6 | |
| 15 May | Moderate or heavy rain shower | 18° /15° | 4.2 mm | 4 | |
| 16 May | Partly cloudy | 24° /14° | 0.9 mm | 6 | |
| 17 May | Sunny | 25° /15° | 0 mm | 7 | |
| 18 May | Overcast | 28° /18° | 0 mm | 6 | |
| 19 May | Moderate or heavy rain shower | 23° /17° | 14.5 mm | 5 | |
| 20 May | Patchy rain possible | 21° /15° | 13.5 mm | 5 | |
| 21 May | Cloudy | 25° /17° | 3.3 mm | 6 | |
| 22 May | Patchy rain possible | 24° /17° | 2.6 mm | 6 | |
| 23 May | Moderate or heavy rain shower | 20° /15° | 10.1 mm | 5 | |
| 24 May | Sunny | 24° /15° | 0 mm | 6 | |
| 25 May | Patchy rain possible | 22° /15° | 0.3 mm | 5 | |
| 26 May | Partly cloudy | 22° /16° | 0 mm | 6 | |
| 27 May | Sunny | 24° /17° | 0.2 mm | 6 | |
| 28 May | Partly cloudy | 23° /18° | 16.9 mm | 6 | |
| 29 May | Heavy rain at times | 22° /18° | 20.9 mm | 5 | |
| 30 May | Patchy rain possible | 23° /18° | 3.1 mm | 6 | |
| 31 May | Moderate or heavy rain shower | 19° /16° | 22.8 mm | 5 | |
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Guide for Japan in May
In May, Japan experiences a transition from spring to early summer, resulting in varied weather conditions throughout the month. At the beginning of May, the weather in Japan is generally mild and pleasant, with cherry blossoms still in bloom in some regions.
Temperatures in Tokyo and other major cities typically range from 15° to 20°, making it an ideal time for outdoor activities and sightseeing.
As the month progresses, the weather becomes warmer and more humid, especially in southern regions such as Okinawa. By the end of May, temperatures can reach 25° to 30° in Tokyo and other urban areas, while the mountainous regions remain cooler.
Additionally, the latter part of the month marks the onset of the rainy season in southern Japan, bringing increased precipitation and occasional thunderstorms.
Overall, May offers a diverse weather experience in Japan, with the opportunity to enjoy the last traces of spring and the emergence of early summer conditions.
Travelers should be prepared for changing weather patterns and pack accordingly for both mild and warmer temperatures, as well as the possibility of rain towards the end of the month.
Japan in May - FAQ
What to pack to Japan in May?
As you prepare for your trip to Japan in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Japan, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
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