Phuket Weather in January
Phuket in January is warm and mostly dry: highs of 85°F (30°C), lows of 76°F (25°C), sea at 84°F (29°C) and about 3.0 in (75 mm) of rain for the month. Rating: Excellent. Expect about 10.4 hours of sunshine a day and 80% humidity. Around 12 days bring at least 1 mm of rain, and the sea is warm enough for swimming.
Excellentwarm and dry, warm sea
Climate normals were checked on September 29, 2026, over a year ago. An update is due.
Climate normals checked September 29, 2026 · Source: Open-Meteo (ERA5) · How we calculate
Phuket climate in January
| Day high | Night low | Sea | Rainy days | Rainfall | Humidity | Sun, h/day |
|---|---|---|---|---|---|---|
| 85°F (30°C) | 76°F (25°C) | 84°F (29°C) | 12 | 3.0 in (75 mm) | 80% | 10.4 |
Flight time from the US
By distance, flying time to Phuket is about 18 h from New York (JFK), 17 h 10 min from Los Angeles (LAX) and 16 h 30 min from San Francisco (SFO). Most trips from the US connect, so add at least 2 h for the layover. These are estimates, not schedules.
Other months in Phuket
- Jan85°FJanuary: Excellent
- Feb88°FFebruary: Excellent
- Mar89°FMarch: Excellent
- Apr88°FApril: Mixed
- May86°FMay: Mixed
- Jun85°FJune: Mixed
- Jul84°FJuly: Mixed
- Aug84°FAugust: Mixed
- Sep83°FSeptember: Mixed
- Oct84°FOctober: Mixed
- Nov84°FNovember: Mixed
- Dec84°FDecember: Good
Excellent Good Mixed Off-season
Phuket in January: FAQ
What's the weather like in Phuket in January?
Phuket in January is warm and mostly dry: highs of 85°F (30°C), lows of 76°F (25°C), sea at 84°F (29°C) and about 3.0 in (75 mm) of rain for the month. Rating: Excellent. Expect about 10.4 hours of sunshine a day and 80% humidity. Around 12 days bring at least 1 mm of rain, and the sea is warm enough for swimming.
Is January a good time to visit Phuket?
We rate January as Excellent and February as Excellent. Best months in Phuket: December to March.
Is Phuket better than Bangkok in January?
Phuket: highs of 85°F (30°C) and 3.0 in (75 mm) of rain. Bangkok: 88°F (31°C) and 0.9 in (24 mm). Bangkok is drier.
Where the data comes from
- Air temperature, rainfall, humidity — ERA5 reanalysis (Copernicus / ECMWF) via Open-Meteo, averaged over 2015–2024. Each region uses one point: the resort or city in its caption.
- Sea temperature — Open-Meteo Marine, average sea surface temperature for 2023–2026 (the source has no longer record yet).
- Sunshine — sunshine duration from the same ERA5 reanalysis (Open-Meteo), average hours of sun per day for the month, 2015–2024.
- Rainy days — days with at least 1 mm (0.04 in) of rain. Reanalysis picks up light rain more often than weather stations, so treat this as an upper bound.
- Month rating — one rule for every destination, based on three factors: day highs (ideal 75–91°F / 24–33°C), monthly rainfall (ideal under 80 mm / 3.1 in) and, for beach regions, sea temperature (ideal 77°F / 25°C or warmer). All ideal means Excellent; one slightly weaker factor means Good. Mixed means heavy rain (150 mm / 5.9 in or more), highs above 97°F (36°C) or a sea below 70°F (21°C). Off-season means highs of 100°F (38°C) or more, cold below 54°F (12°C), over 350 mm (13.8 in) of rain, or several problems at once. A country's rating follows its best region, so check the regional table.
- Licence — weather data by Open-Meteo.com under CC BY 4.0; ERA5 reanalysis by the Copernicus Climate Change Service / ECMWF. The normals are precomputed and stored on this site, so the page sends no requests to the source.
Checked September 29, 2026. Climate normals are refreshed yearly and the notes every 90 days. These are long-term averages, not a forecast: any given year can differ.
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