Phnom Penh weather in January is generally dry and warm, with an average temperature around 26°C and very little rainfall. For travellers, this month offers reliable outdoor conditions but also higher visitor numbers and peak-season prices.
What January is like in Phnom Penh
January falls inside Cambodia's dry season, which runs from December through May. During this period the influence of the northeast monsoon tends to keep skies clear and precipitation low, producing several weeks of steady, sunny weather.
Statistical summaries for January typically show an average temperature near 26°C and daytime highs that can reach roughly 31.5°C. Monthly precipitation is very low compared with the wet months: recorded figures for January commonly sit around 10 mm, and the probability of a rainy day is minimal.
- Average temperature: ~26°C
- Typical daytime maximum: up to about 31.5°C
- Average monthly rainfall: ~10 mm
- Average humidity: near 66%
- Average daily sunshine: roughly 8 hours
Key features and highlights of visiting in January
The dry conditions make January well suited to walking between riverside sights, visiting markets and spending time at outdoor monuments and parks. Many travellers find it easier to explore the city on foot or by short tuk‑tuk rides because prolonged downpours are unlikely.
January also coincides with a busy travel period in Cambodia. Higher demand means tour operators and hotels increase capacity to accommodate visitors, and cultural events scheduled in the season can provide opportunities to see local traditions and ceremonies.
- Good month for riverfront promenades and open‑air markets.
- Lower chance of flight disruptions from weather compared with the wet season.
- Peak tourist season — expect more people at major attractions and higher rates.
Practical tips for travellers in January
Because January is warm and mostly dry, lightweight, breathable clothing is the most comfortable choice. Sun protection — a hat, sunscreen and sunglasses — helps manage long periods outdoors, and carrying water helps prevent heat-related fatigue during daytime excursions.
Peak-season crowds and higher prices are the practical realities of visiting in January. Booking accommodation and transport earlier than usual reduces the chance of limited availability, and selecting hotels close to the central district saves travel time when moving between sights.
- Wear light, breathable fabrics and comfortable walking shoes.
- Bring sun protection and refillable water to stay hydrated.
- Reserve hotels and popular tours well in advance to avoid sold-out dates.
- Keep small bills and a secure bag when visiting crowded markets and tourist areas.
Cultural context and seasonal events
January sits inside a period when many locals plan festivals and family gatherings, so visitors may encounter traditional activities or market events that reflect Khmer customs. These occasions can be a useful way to observe local life, but specific festival dates change from year to year.
For travellers interested in Cambodia's temple sites, note that Angkor is located in Siem Reap province rather than in Phnom Penh. Day trips or multi‑city routes that include both Phnom Penh and Siem Reap are common; planners should account for travel time between those cities when organising visits to Angkor.
For further reading on visiting the Angkor area and planning time there, see our Temples of Angkor guide.
Who January suits — which travellers will benefit most
January is a strong option for travellers who prioritise consistent dry weather and easy access to outdoor attractions. Photographers, walkers and anyone planning city sightseeing will find the conditions favourable for daytime activities.
On the other hand, travellers seeking lower costs and quieter streets may prefer shoulder months when visitor numbers taper off. If your trip forms part of a wider regional tour, combining Phnom Penh with nearby destinations is common; for example, multi‑country itineraries that cover Vietnam, Cambodia and Thailand can be structured around this dry period to maximise good weather.
For travellers considering a cross‑border route that includes Phnom Penh, consult our 7-day itinerary for an example of how time can be allocated across the region.
Comparisons and alternatives
Choosing when to visit Phnom Penh often comes down to tradeoffs between weather, crowd sizes and cost. January provides dependable dry conditions but is also one of the busiest months for tourism. The wet season, by contrast, brings higher rainfall, increased humidity and fewer visitors, which can mean lower prices and quieter attractions.
For travellers who prefer cooler or less crowded conditions, the transitional months at the beginning and end of the dry season may offer a middle ground. Planning around local events and advance bookings remains important regardless of the month.
| Feature | January (typical) | Wet season (typical June–Oct) |
|---|---|---|
| Rainfall | Very low (~10 mm) | Substantially higher; frequent heavy showers |
| Temperature | Warm (avg ~26°C; highs ~31.5°C) | Warm to hot, often humid |
| Crowds | High — peak tourist season | Lower — off‑peak |
| Prices | Often elevated for hotels and tours | Typically lower and more negotiable |
| Best for | Outdoor sightseeing and temple visits | Budget travel and quieter exploration |
Frequently Asked Questions
Is January a reliable month for sightseeing in Phnom Penh?
Yes. January is one of the driest months, so outdoor sightseeing is usually straightforward with minimal disruption from rain. Visitors report long daylight hours and comfortable conditions for daytime activities.
How hot does Phnom Penh get in January?
Average temperatures in January hover around 26°C, with daytime highs that can reach about 31.5°C. Mornings and evenings are typically milder than midday.
Are flights and transport affected by January weather?
January's dry conditions reduce weather‑related delays, and flights and local transport tend to run on schedule compared with the wet season. However, holiday demand can affect availability rather than weather.
Should I expect crowds and higher prices?
Yes. January is part of Cambodia's peak travel season, so hotels, tours and airfare often cost more and sell out faster. Booking in advance and considering central accommodation can simplify logistics.
What should I pack for January in Phnom Penh?
Pack lightweight clothing, sun protection, a refillable water bottle and basic medicines. Comfortable shoes for walking and a small umbrella or light rain jacket are optional but not essential for January's typically dry conditions.