Staying Safe on a Very Hot Day | Learn Japanese in English

Sentence explanations

1. 今日は本当に暑くなりそうです。

   It's going to be really hot today.

   今日

   today

   本当に

   really

   暑く

   hot

   なりそうです

   seems likely to become

   More detail

   今日 means “today,” the current day relative to the time of speaking. It is a time expression and can set the sentence’s time frame. Example: 今日は休みです。 — “Today is a day off.” 本当に is an adverb meaning “really” or “truly.” Here it intensifies the predicted heat. Example: 本当に大きいです。 — “It is really big.” 暑く is the inflected form of the i-adjective 暑い, “hot.” Before the change-of-state verb なる, 暑い changes to its -く form: 暑い → 暑くなる, “become hot.” The form 暑く itself does not mean that the change has already happened; the following construction supplies that meaning. なりそうです is built from なる, “become,” and the appearance expression そうです. なり is the continuative form of なる, used before そうです; なりそうです means “seems likely to become.” After a verb’s continuative form, そうです expresses an appearance or prediction based on signs or an impression. In this sentence it is the appearance sense, not the separate hearsay use of そうです. です makes the expression polite; it does not by itself mark future time. Example: 雨が降りそうです。 — “It looks like it will rain.” Together, 今日 sets the time, 本当に strengthens the prediction, and 暑くなりそうです says that becoming hot appears likely. The whole utterance means: “It’s going to be really hot today.”

2. 一番暑い時間には歩かないようにしましょう。

   Let's avoid walking during the hottest part of the day.

   一番暑い

   the hottest

   時間

   time; period

   には

   at; during

   歩かない

   not walk

   ようにしましょう

   let’s make sure to

   More detail

   一番暑い means “the hottest” here. 暑い is the adjective “hot,” and 一番 makes the degree the highest in the relevant comparison: 暑い → もっと暑い (“hotter”) → 一番暑い (“the hottest”). In this sentence, it describes 時間, so the phrase means “the time that is hottest.” Example: 今日は一番暑い。 — “Today is the hottest.” 時間 means “time” or “a period of time.” In 一番暑い時間, it refers to the hottest time period, not to a clock reading by itself. Example: 短い時間だけ休みます。 — “I’ll rest for only a short time.” には combines the particle に, which marks a time or setting, with は, which highlights that setting as the topic or point of attention. After 一番暑い時間, it gives the sense “during the hottest time.” The は can add a contrastive or focusing nuance, but it does not change the basic time reference. 歩かない is the negative form of 歩く (“to walk”): 歩く → 歩かない, “do not walk / not walk.” The negative form ends in ない; it is not the past form. Example: 今日は歩かない。 — “I’m not walking today.” ようにしましょう is a suggestion built from ようにする (“make an effort to; arrange things so that”) and the polite volitional form しましょう (“let’s do”). With a negative verb before it, 歩かないようにしましょう means “let’s make an effort not to walk” or, naturally here, “let’s avoid walking.” This construction presents the action as a shared plan or effort rather than a bare command. Example: 忘れないようにしましょう。 — “Let’s make sure not to forget.” Together, 一番暑い時間には sets “during the hottest time” as the time to consider, 歩かない supplies the action to avoid, and ようにしましょう turns that negative action into a polite shared suggestion. The whole utterance therefore means: “Let’s avoid walking during the hottest part of the day.”

3. 出かける前に日焼け止めを塗ります。

   I'll put on sunscreen before we leave.

   出かける

   go out; leave

   前に

   before

   日焼け止め

   sunscreen

   塗ります

   apply; put on

   More detail

   出かける means “go out” or “leave.” It is the plain, nonpast form of 出かける, used here before another expression rather than as a polite sentence ending. The nonpast form can refer to a future event when the context is future-oriented. In this translation, the event is understood as “we leave.” 前に means “before.” 前 is a noun meaning “front” or “before,” and に marks the time at which the following event is placed. The pattern verb-plain form + 前に means “before doing ...”: 寝る前に means “before going to bed.” Here, 出かける前に is “before we leave.” 日焼け止め is the noun “sunscreen” or “sunblock.” It is made from 日焼け (“sunburn” or “tanning”) and 止め (“prevention” or “stop”), but it functions as one ordinary noun for a product that protects against sun exposure. With を, it is the object of the action: 日焼け止めを塗る means “apply sunscreen.” 塗ります means “apply” or “put on” here, specifically applying a substance to a surface such as the skin. It is the polite nonpast form of 塗る; the ending ます expresses polite style and does not itself identify the subject as singular or plural. In the fixed translation, the omitted subject is understood as “I.” For example, 薬を塗ります。 means “I’ll apply the medicine.” The structure is 出かける前に (“before we leave”) + 日焼け止めを (“sunscreen,” marked as the object) + 塗ります (“will apply”). Together, the utterance means “I’ll put on sunscreen before we leave.” The sentence is polite and can be reused by replacing the object, as in 出かける前に帽子をかぶります。—“I’ll put on a hat before we leave.”

4. できるだけ日陰にいてください。

   Stay in the shade whenever you can, too.

   できるだけ

   as much as possible

   日陰

   shade

   いてください

   please stay/be

   More detail

   できるだけ means “as much as possible” or “whenever possible.” It is a reusable adverbial expression: できるだけ + verb sets the greatest practical degree of the action, without claiming that the maximum is always achieved. For example, できるだけ早く来てください。 means “Please come as soon as possible.” 日陰 means “shade” or “a shaded place.” The word 日 means “sun” or “day,” and 陰 means “shade,” but 日陰 is used as the established noun for a place protected from direct sunlight. In this sentence it is the place where the listener is asked to remain. いてください asks someone to stay or be somewhere. いて is the て-form of いる, which is used for an animate being’s presence or continued state; ください makes the request polite. The pattern 場所にいてください means “Please stay in [a place].” For example, ここにいてください。 means “Please stay here.” Together, できるだけ limits the request to the greatest extent possible, 日陰に marks the shade as the place, and いてください politely asks the listener to remain there: “Please stay in the shade whenever you can.”

5. この暑さでは、私はすぐに水分が足りなくなるかもしれません。

   I could get dehydrated quickly in this heat.

   この

   this

   暑さ

   heat

   では

   in or under these conditions

   私は

   as for me

   すぐに

   quickly

   水分

   fluids

   足りなくなる

   become insufficient; run short

   かもしれません

   may; might

   More detail

   この points to something associated with the speaker’s current situation and comes before the noun it describes. Here it modifies 暑さ, giving “this heat.” The basic pattern is この + noun: この水 means “this water.” 暑さ means “heat” or “hotness” here. It is a noun formed from the i-adjective 暑い (“hot,” for weather or surroundings) with -さ, which turns a property into a noun expressing its degree or quality. For example, 暑さが厳しい means “The heat is severe.” では marks the circumstances or setting: in these conditions, or under these circumstances. In this sentence, この暑さでは means “in this heat.” The で part marks the situation, and は highlights it as the relevant condition. A reusable pattern is この状況では、… — “In this situation, …” 私は presents the speaker as the topic: “as for me” or “I.” 私 is a first-person pronoun, and は marks the topic. It does not by itself specify a gender or a particular degree of formality. For example, 私は水を飲みます means “I drink water.” すぐに is an adverb meaning “quickly” or “soon.” Here it describes how soon the shortage may develop, not the manner of drinking. For example, すぐに戻ります means “I’ll return soon.” 水分 refers to water or fluids, especially the body’s fluid content in this context. It is a noun, so 水分が足りない literally says that there is not enough fluid. The nearby context about staying in the shade, carrying water, and drinking often supports the natural English reading “become dehydrated,” but the Japanese wording itself uses the idea of insufficient fluids. 足りなくなる means “become insufficient” or “run short.” Its base verb is 足りる, “be enough.” The negative form is 足りない, “not be enough,” and 足りなくなる combines that form with なる (“become”) to show a change into an insufficient state. For example, 時間が足りなくなった means “We ran short of time.” かもしれません expresses possibility with polite wording: “may” or “might.” Its plain counterpart is かもしれない; ません here is part of this polite expression and should not be interpreted as a separate negation of the possible event. For example, 雨が降るかもしれません means “It might rain.” Together, この暑さでは sets the condition, 私は identifies the speaker as the topic, すぐに says that the change could happen quickly, and 水分が足りなくなるかもしれません says that the speaker’s fluids may become insufficient. The whole utterance therefore means, naturally, “I could get dehydrated quickly in this heat.”

6. 水を持って、よく飲んでください。

   Carry water and drink often.

   水

   water

   持って

   carry and…

   よく

   often

   飲んでください

   please drink

   More detail

   水 means “water.” It is a noun, and 水を marks water as the object of the action: を follows the noun being carried or used. Example: 水を飲みます。 — “I drink water.” 持って is the て-form of 持つ (“to hold; to carry; to bring”). Here it means “carry” and links this action to the following request: 水を持って、… — “Carry water and …”. The て-form can connect actions in sequence without repeating the subject. Example: かばんを持って、出かけます。 — “I take a bag and go out.” よく means “often” here. This is a context-dependent use of the adverb; the translation identifies frequent drinking as the intended meaning. In other contexts, よく can mean “well,” but that is not its meaning in this utterance. Example: 夏はよく水を飲みます。 — “In summer, I often drink water.” 飲んでください is a polite request meaning “please drink.” 飲んで is the て-form of 飲む (“to drink”), and adding ください makes a request. The form is not a command to a named person; the addressee is understood from the situation. Example: 薬を飲んでください。 — “Please take the medicine.” Together, 水を持って gives the first requested action, while よく飲んでください gives the polite request to drink frequently. The whole utterance means: “Carry water and drink often.”

7. あとで、涼しくなったら公園に行きましょう。

   Let's visit the park later when it's cooler.

   あとで

   later

   涼しく

   cool

   なったら

   when it becomes

   公園

   park

   行きましょう

   let’s go

   More detail

   あとで means “later,” referring to a time after now. It is a useful time expression and can appear before the main action: あとで電話します。 means “I’ll call later.” 涼しく comes from the adjective 涼しい, “cool.” Its -く form connects the adjective to なる, “become”: 涼しくなる means “become cool.” In this sentence, the translation “cooler” presents the future condition as cooler than the current condition; 涼しい itself is not a dedicated comparative form. なったら is formed from なる, “become,” using the past form なった plus ら: なる → なったら. With a change-of-state expression, Xになったら means “when X becomes true” or “once it becomes X.” Here, 涼しくなったら means “when it becomes cooler.” The たら form can mark a condition or the time when the main action will happen; here it marks time. 公園 means “park.” With the destination particle に, 公園に means “to the park.” Example: 駅に行きます。 — “I go to the station.” 行きましょう is the polite volitional form of 行く, “go”: 行く → 行きましょう. It proposes a shared action, so it means “let’s go.” With 公園に, the intended meaning is “let’s go to the park” or “let’s visit the park.” Together, あとで sets the time, 涼しくなったら gives the time condition “when it becomes cooler,” 公園に gives the destination, and 行きましょう makes a polite proposal: “Let’s visit the park later when it’s cooler.”

8. そのほうが安全で、もっと快適です。

   That will be safer and more comfortable.

   そのほうが

   that option/way

   安全で

   safe and

   もっと

   more

   快適

   comfortable

   More detail

   そのほうが means “that option/way” and marks it as the subject of the comparison. その points to something understood from the context, while ほう is the noun “direction, side, or option.” The fixed translation identifies the intended option as the one being safer and more comfortable. A reusable pattern is Aほうが…, meaning “A is the … option” or “A is more …” when alternatives are understood. 安全で comes from the な-adjective 安全だ, “safe.” The form 安全で links this description to what follows: 安全で、快適です means “is safe and comfortable.” With a な-adjective, で is the connective form; it is not an inflection of the following noun. もっと means “more” or “to a greater degree.” Here it strengthens the comparison, so もっと快適 means “more comfortable.” It commonly appears before an adjective or other descriptive expression. 快適 is a な-adjective meaning “comfortable” or “pleasant.” In the sentence, 快適です is the polite form “is comfortable”: 快適 supplies the description and です makes the statement polite. Unlike an i-adjective such as 暑い, a な-adjective uses だ in a plain statement and です in a polite one. Together, そのほうが安全で、もっと快適です says, “That option will be safer and more comfortable.” The first description is linked to the second with で, and もっと makes the comfort comparison explicit. The polite ending です gives the complete sentence a polite tone.