Top Weather iPhone Apps Ranking in Japan

See the full list of Japan iPhone Weather apps for August 21, and read the full analysis below

Last updated : August 21, 2026

Store Rank		App and Publisher	Category	Store Rank	Change
1	1	Weathernews - Weather ForecastWeathernews Inc.	Weather	1	=
2	2	Yahoo!天気Yahoo Japan Corporation	Weather	2	1
3	3	Windy.comWindyty, SE	Weather	3	1
4	4	NERV Disaster PreventionGehirn Inc.	Weather	4	=
5	5	頭痛ーる-気圧・天気予報で体調管理-気象病対策アプリPOCKE,INC.	Weather	5	=
6	6	tenki.jp 天気予報・雨雲レーダー/地震速報・台風情報Japan Weather Association	Weather	6	=
7	7	tenki.jp 登山天気日本気象協会公式山の天気予報Japan Weather Association	Weather	7	=
8	8	Yahoo!防災速報Yahoo Japan Corporation	Weather	8	=
9	9	タイドグラフBI /全国の釣り場ごとの潮見表B.Creation Inc.	Weather	9	1
10	10	The Thermometer -Digital-Vida Apps Incorporated	Weather	10	1
11	11	ききくる天気レーダー - キキクル予報雨雲の動きLeon Calcutt	Weather	11	2
12	12	Windy.app — Wind, Tides, RadarWindy Weather World Inc	Weather	12	3
13	13	FUNWAVES（ファンウェーブス）LIFE FORCE, K.K	Weather	13	1
14	14	Sakana Switch: Fishing PlannerERIKO KONNO	Weather	14	3
15	15	Thermometer++ AppViachaslau Tysianchuk	Weather	15	3
16	16	Digital AMeDASMETEROLOGICAL ENGINEERING CENTER.,INC	Weather	16	=
17	17	被害予測・防災cmapAioi Nissay Dowa Insurance Co.,Ltd.	Weather	17	15
18	18	大阪防災アプリOsaka Prefectural Government	Weather	18	1
19	19	AmemilShimadzu Business Systems Corporation	Weather	19	=
20	20	天気予報 - 気象庁 -hidehiko aihara	Weather	20	6
21	21	海天気.jp - 海の天気予報アプリRisesystem, Inc.	Weather	21	2
22	22	てんきとくらす tenki to kurasuJapan Meteorological Corporation	Weather	22	2
23	23	ココダヨ　地震速報・災害情報を通知位置情報共有・防災アプリGenetec Corporation	Weather	23	5
24	24	潮汐なびYasunori Kuroki	Weather	24	2
25	25	Thermometer for Room +KORPORATSIIA 12 TOV	Weather	25	=
26	26	Safety tipsRC Solution Co.	Weather	26	1
27	27	ふくおか防災ナビまもるくんRC Solution Co.	Weather	27	6
28	28	ゆれくるコールRC Solution Co.	Weather	28	4
29	29	MeteoSwissFederal Office of Meteorology and Climatology MeteoSwiss	Weather	29	1
30	30	My Aurora Forecast & AlertsJRustonApps B.V.	Weather	30	2
31	31	横浜市避難ナビYOKOHAMA CITY	Weather	31	2
32	32	ハザードマップ - 洪水・浸水・土砂・冠水の災害に備えるhidehiko aihara	Weather	32	3
33	33	AccuWeather: Weather ForecastAccuWeather International, Inc.	Weather	33	7
34	34	Hygrometer - HumidityMORETHAN APPS	Weather	34	3
35	35	IQAir AirVisual \| Air QualityIQAir AG	Weather	35	2
36	36	もふもふ天気予報JINGOOD, LIMITED LIABILITY COMPANY	Weather	36	3
37	37	全国避難所ガイド1st Media Corporation	Weather	37	1
38	38	Temperature in Room +Sinus Electric Ltd	Weather	38	3
39	39	Simple Moon Phase CalendarFumihiro Takahashi	Weather	39	1
40	40	Moon Calendar by MoonXVibes LLC	Weather	40	3
41	41	アウトドア天気Risesystem, Inc.	Weather	41	5
42	42	防災リスマ - 災害リスク・ハザードマップKeishi Ishimura	Weather	42	7
43	43	UV Forecast - Check UV IndexHodai Azeyanagi	Weather	43	8
44	44	Zoom Earth - Weather ForecastNeave Interactive Limited	Weather	44	32
45	45	WBGT - 暑さ指数hidehiko aihara	Weather	45	7
46	46	おさんぽびより - 犬の天気とお散歩アラートRyoya Hisatomi	Weather	46	12
47	47	静岡県防災Shizuoka Prefecture	Weather	47	45
48	48	防災アプリクロスゼロ for ファミリーKENSETSU SYSTEM Co.Ltd.	Weather	48	3
49	49	MyObservatoryHong Kong Observatory	Weather	49	7
50	50	PREP（プレップ） - 総合防災アプリRC Solution Co.	Weather	50	20
51	51	Thermometer - Plus -hidehiko aihara	Weather	51	3

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Top iOS Weather Apps in Japan: Ranking Analysis for August 21

Weathernews - Weather Forecast is the top iOS Weather app in Japan for August 21, since it's ranking did not change by 0 positions since last month. Weathernews - Weather Forecast is ranked in the Weather apps category, and was developed by Weathernews Inc..

Yahoo!天気 rank has increased to 2nd position in Japan for August 21, which is a change of 1 positions in ranking since last month. Yahoo!天気 is published by Yahoo Japan Corporation and ranked under the Free Weather apps category in iOS in Japan

Windy.com is last of the top 3 Free Weather apps in Apple Store ranking in Japan for this month, after it's rank decreased by -1 positions since last month