Birrí
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Birrí Weather in September

In Birrí, September brings high daytime temperatures around 25°C (77°F), with nights cooling to 17°C (63°F). This month falls within the rainy season, so expect frequent rainfall.

Rainfall in Birrí in September

Birrí is in the rainy season in September, with rain on around 24 days and an average of 397 mm (16 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.

Temperature in Birrí in September

In September, Birrí gets high temperatures, with highs of 25°C (77°F). Nights cool to around 17°C (63°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows of 17°C (63°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Birrí in September

The area enjoys a balanced 149 hours of sunlight, ensuring it's neither too rainy nor too sunny.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Birrí. Our weather planner can help you explore destinations with more pleasant weather conditions.

Birrí Temperature in September

Min Temperature
17°C (63°F)
Max Temperature
25°C (77°F)
Chance of Rain
81%
Precipitation
397 mm (16 in)
Rainy days
24 days
Humidity
85% *
Sunshine
149 hours *
Percentage Sunshine
*
* Data from: San José, Costa Rica (16 KM, 10 Miles).

Birrí Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Birrí - and find the best time to visit.

Best Places in Costa Rica in September

Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Birrí in September

Warm but pleasant conditions in Birrí in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Birrí in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    7/10
  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    6/10
  • Outdoor sports
    7/10

Birrí 3-Day Forecast

More climate data for Birrí

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.