Question 1

How many hours of daylight does this need for continuous operation?  I live in the North, where the nights get long.

Accepted Answer

I've had  a Tempest since it was first introduced. It's relatively easy to set up and maintenance free. I live in the Pacific Northwest and the Tempest is pretty useless during wintertime as the solar panels don't  get enough ambient light to fully charge. For the last year, WeatherFlow has promised a battery power pack accessory to mitigate this issue but they keep delaying its release.

Question 2

Other than the initial cost of the sensor unit, is there any on-going access fee or subscription charge that is required to use the system?

Accepted Answer

Hi there!  The Tempest Weather System is a one-time purchase and there are no required subscriptions/fees for ongoing use.  I hope this helps!

Kind regards,

Question 3

We live in the mountains and frequently get storms with large damaging hail. Is the Tempest sensor warranted against hail damage?

Accepted Answer

I also live in the mountains but in the tropics so I cannot directly answer about hail.   I do however want to mention how in my opinion, their warranty is really, really good.   I had occasion where my Tempest was recording accurately but not keeping history.   Weather-Flow immediately sent me a new one, no questions asked, and indeed, did not even request that I return the faulty one.   Just a great experience and I'm sure they would give support in the case of hail.
Cheers,     Marcel Lauzon, Costa Rica

Question 4

Does this weather station measure to the nearest whole degree or tenth of a degree?

Accepted Answer

On the main screen of the Tempest iPad app and on my Apple watch the temperature is displayed as a whole number.  However, if you select the device on the main screen of the iPad tempest app you get more detailed information and on this page it displays temperature  as xx.x (i.e. in tenths).  Thus I believe the answer to your question is that it measures it to tenths of a degree although it displays it to the nearest whole degree depending on where you look.

ASIN	B0868WY7NY
Amazon 売れ筋ランキング	DIY・工具・ガーデン - 518,052位 ( DIY・工具・ガーデンの売れ筋ランキングを見る ) 屋外装飾 - 8,016位
UPC	859883004298
おすすめ度	4.3 5つ星のうち4.3 (1,825) var
この商品に電池/バッテリーは内臓/同梱されていますか	いいえ
カラー	白
ケース形	長方形
スタイル名	モダン
センサー技術	モーション, 容量
ブランド名	WeatherFlow
メーカー型番	WF-TWS01
モデル番号	2020
上位温度定格	140 華氏
動力源	バッテリー式
同梱商品	風速計, 雨量計
周波数	0.33 Hz
品目の寸法（D x W x H）	10.6奥行き x 21幅 x 21.6高さ cm
商品の推奨用途	ホーム
商品の用途	湿度、学習、圧力、温度、時間、風速
商品の重量	1.6 ポンド
接続方式	Wi-Fi
温度精度	1 °C
温度読み取り精度	plus_minus_1_degree_celsius
特殊機能	ワイヤレス, アプリとアレクサに対応, 組み込み風速計, 雨量計, 正確な天気予報
電池の数	1 リチウムイオン電池

Tempest Weather System with Built-in Wind Meter, Rain Gauge, and Accurate Weather Forecasts, Wireless, App and Alexa Enabled

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Common Questions