🇸🇭 ジェームズタウンの天気
時間ごとの予報（ ジェームズタウン
20:00
19°
9%
21:00
19°
18%
22:00
19°
16%
23:00
18°
9%
00:00
18°
9%
01:00
18°
8%
02:00
18°
8%
03:00
18°
10%
04:00
18°
9%
05:00
18°
8%
06:00
18°
6%
07:00
18°
6%
08:00
18°
7%
09:00
18°
8%
10:00
18°
8%
11:00
18°
9%
12:00
18°
7%
13:00
18°
7%
14:00
18°
6%
15:00
18°
6%
16:00
18°
6%
17:00
19°
7%
18:00
19°
20%
19:00
18°
26%
14日間予報（ ジェームズタウン
2026-08-02
近くで所により雨
19° /
18°
2026-08-03
晴れ
19° /
18°
2026-08-04
近くで所により雨
19° /
18°
2026-08-05
晴れ
19° /
18°
2026-08-06
近くで所により雨
19° /
18°
2026-08-07
近くで所により雨
19° /
18°
2026-08-08
近くで所により雨
19° /
18°
追加の予報 ジェームズタウン
空気質
💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 95.0 μg/m³
O₃ (Ozone) 74.0 μg/m³
SO₂ (Sulphur Dioxide) 0.4 μg/m³
PM2.5 (Fine particles) 19.4 μg/m³
PM10 (Coarse particles) 29.5 μg/m³
過去の天気
他の都市の天気予報 セントヘレナ、アセンション島、トリスタンダクーニャ
ジェームズタウンの天気 — FAQ
回答は、ジェームズタウンの現在の状況に基づいてリクエストごとに更新されます。
What is the weather like right now in ジェームズタウン?
Right now in ジェームズタウン, セントヘレナ、アセンション島、トリスタンダクーニャ the temperature is 18.8°C (feels like 16.4°C), with 一部曇り. Relative humidity is 74% and wind is 18.7 km/h.
What is today's high and low temperature in ジェームズタウン?
Today's forecast high in ジェームズタウン is 19.4°C and the overnight low is 18.3°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in ジェームズタウン today?
The chance of precipitation in ジェームズタウン today is 26%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in ジェームズタウン differ from nearby cities?
Even short distances can change temperatures noticeably. ジェームズタウン's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.