Saint Thomas in August: weather, rain (52%) and should you go? [2026]

Month summary

Saint Thomas weather in August

✅ Good

🌡️ Temperature min / max

27°C – 28°C

🌧 Rainy days

52% of days

☀️ Sunshine

11.1h per day on average

🌊 🌊 Season

Summer

⭐ ⭐ Weather score

8.2/10

📅 📅 Best month

March (8.8/10)

Quick decision

Should you visit Saint Thomas in August?

✅ Good

✅ Yes if: you want long sunny days and outdoor activities.

❌ No if: you want to avoid summer crowds — this is peak tourist season.

🌧 Rain : █████░░░░░ 52%

🌡 Temperature : ███████░░░ 28°C

☀️ Sunshine : ████████░░ 11.1h/d

Our take: August in Saint Thomas is hot and humid with temperatures hovering around 27–28°C—perfect if you love year-round warmth without needing a jacket. You'll get plenty of sunshine (344.5 hours!), though afternoon showers are common, so pack light rain gear and plan indoor activities for midday downpours. This is peak hurricane season, but the island's solid 8.2/10 score means you're still good to visit if you're flexible and don't mind occasional rain.

By trip type

Saint Thomas in August by trip type

🏙️ 🏙️ City break / culture : ✅ Good
🚶 🚶 Outdoor activities : ✅ Good
🏖️ Beach / swimming : ✅ Good
💰 💰 Budget : ✅ Low season

Local context

What to expect in August

Summer in Saint Thomas brings pleasant temperatures (28°C) and long sunny days (11.1h of sunshine). With 52% of rainy days, always have indoor alternatives planned. A good balance between weather and crowds, even if March (8.8/10) remains theoretically better.

Browse by month

All months for Saint Thomas

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Annual table

Month-by-month comparison

Month	Min °C	Max °C	Rain %	Precip mm	Sun h/d	Score
🌤️ January	25°C	26°C	31%	30.0	10.6h	8.6/10
🌤️ February	24°C	26°C	37%	35.7	11.7h	8.4/10
🌤️ March	24°C	26°C	25%	25.5	10.8h	8.8/10
🌤️ April	25°C	26°C	29%	41.8	11.8h	8.7/10
🌤️ May	26°C	27°C	33%	58.3	11.4h	8.7/10
🌤️ June	26°C	28°C	35%	44.0	12.3h	8.7/10
🌤️ July	27°C	28°C	43%	76.4	11.6h	8.4/10
🌤️ August	27°C	28°C	52%	100.1	11.1h	8.2/10
🌤️ September	27°C	29°C	55%	134.5	10.9h	7.9/10
🌤️ October	27°C	28°C	56%	123.9	10.2h	8.0/10
🌤️ November	26°C	28°C	54%	130.3	9.9h	8.1/10
🌤️ December	26°C	27°C	37%	39.3	10.3h	8.5/10

Ideal Fair Challenging climate ◀ Current month · Source Open-Meteo · 10 years

📊 Data source Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In August, Saint Thomas averages 28°C, 52% rainy days and 11.1h of sunshine per day. Overall weather score: 8.2/10. See methodology →

Comparison