When to go · Oeiras

Oeiras in December

Avoid month. Listed as a month to avoid: Dec–Feb (rainy season).

Key facts

Verdict: Avoid
Temperature: 34°C (93°F)93°F (34°C) / 23°C (73°F)73°F (23°C); average high / low
Rain days: 10
Crowds: High; Brazil overall
Prices: High; Brazil overall

Plan around it

Verdict

AvoidBest and avoid months for Oeiras

Listed as a month to avoid: Dec–Feb (rainy season).

Is another month better than December?

December is rated avoid. These months rate higher:

Weather in December

Long-term averages

OeirasHighs around 34 °C (93 °F), lows around 23 °C (73 °F), rain on about 10 daysHighs around 93 °F (34 °C), lows around 73 °F (23 °C), rain on about 10 days

Festivals and holidays

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

Christmas big impact
25 Dec · Brazil
Family holiday; summer travel peak starts.

Crowds and prices

Crowds · Brazil overall: High
Prices · Brazil overall: High

Brazil overall: Summer rains start; New Year's Eve on Copacabana fills Rio; book everything early.

High-price month: see what to book ahead.

Compare two months

Weather, crowds and prices for any two months in Oeiras, side by side.

First month

Second month

Verdict
Dec: Avoid
Jun: Great (better)
Daytime high
Dec: 34 °C (93 °F)93 °F (34 °C)
Jun: 33 °C (91 °F)91 °F (33 °C)
Night low
Dec: 23 °C (73 °F)73 °F (23 °C)
Jun: 21 °C (70 °F)70 °F (21 °C)
Rain days
Dec: 10
Jun: 3 (better)
Crowds
Dec: High
Jun: Medium
Prices
Dec: High
Jun: Medium
Festivals listed
Dec: 1
Jun: 1

December: Listed as a month to avoid: Dec–Feb (rainy season).

June: Inside Oeiras's best window: Jun–Aug (festivals), Easter week.

Oeiras: figures are long-term averages from this guide, not a forecast.

What to pack

Light, breathable clothes, a sun hat and sunscreen
A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across Brazil in December →