# Top Science Websites in Japan
The top 10 most visited science websites in Japan by Ahrefs organic search traffic estimates. Updated monthly.
January 2026
| Rank | Website | Search traffic | ||
|---|---|---|---|---|
| 1 | ↑1 | weathernews.jp |
24.3M
-304.6K
|
-304.6K |
| 2 | ↑1 | tenki.jp |
18.8M
-1.8M
|
-1.8M |
| 3 | ↑1 | jma.go.jp |
11.3M
+3.8M
|
+3.8M |
| 4 | ↑1 | kegg.jp |
5.7M
-106K
|
-106K |
| 5 | ↓4 | openai.com |
4M
-22.7M
|
-22.7M |
| 6 | mtgec.jp |
1.6M
+75K
|
+75K | |
| 7 | rad-ar.or.jp |
1.5M
+17.3K
|
+17.3K | |
| 8 | ↑2 | n-kishou.co.jp |
1.1M
+265K
|
+265K |
| 9 | jrc.or.jp |
896K
+7.5K
|
+7.5K | |
| 10 | ↓2 | gaten.info |
875.4K
-44.8K
|
-44.8K |
## Top Trending Websites
Websites that changed positions within the top 100 rankings in January 2026.
Trending up
↑2
↑1
#2
tenki.jp
↑1
#3
jma.go.jp
↑1
#4
kegg.jp
↑1
#6
mtgec.jp
#7
rad-ar.or.jp
#9
jrc.or.jp
#10
gaten.info
↑2
#5
openai.com
↑4
Trending down
#5
openai.com
↓4
#10
gaten.info
↓2
#6
mtgec.jp
#7
rad-ar.or.jp
#9
jrc.or.jp
↓1
#2
tenki.jp
↓1
#3
jma.go.jp
↓1
#4
kegg.jp
↓1
↓2