10-Day Weather Forecast for San Juan

Six-hourly outlook through Friday 4 September. Updated every three hours via MET Norway.

Day
Night
02:00
Morning
08:00
Afternoon
14:00
Evening
20:00
Wednesday
26 Aug
Rain
28°C (82°F)
3.2 mm (0.1 in)
Rain
27°C (81°F)
3.3 mm (0.1 in)
Partly cloudy
26°C (79°F)
0.2 mm (0.01 in)
Hourly ›
Thursday
27 Aug
Rain showers
26°C (79°F)
4.7 mm (0.2 in)
Heavy rain
27°C (81°F)
20 mm (0.8 in)
Heavy rain
26°C (79°F)
9 mm (0.4 in)
Cloudy
25°C (77°F)
0.4 mm (0.02 in)
Hourly ›
Friday
28 Aug
Light rain
25°C (77°F)
0.9 mm (0.04 in)
Heavy rain
26°C (79°F)
21 mm (0.8 in)
Heavy rain
26°C (79°F)
22 mm (0.9 in)
Heavy rain
25°C (77°F)
9.5 mm (0.4 in)
Hourly ›
Saturday
29 Aug
Heavy rain
24°C (75°F)
13 mm (0.5 in)
Heavy rain
25°C (77°F)
25 mm (1 in)
Heavy rain
25°C (77°F)
20 mm (0.8 in)
Heavy rain
24°C (75°F)
11 mm (0.4 in)
Hourly ›
Sunday
30 Aug
Heavy rain
25°C (77°F)
9 mm (0.4 in)
Heavy rain
25°C (77°F)
11 mm (0.4 in)
Heavy rain
25°C (77°F)
16 mm (0.6 in)
Heavy rain
25°C (77°F)
8.7 mm (0.3 in)
Hourly ›
Monday
31 Aug
Heavy rain
24°C (75°F)
11 mm (0.4 in)
Heavy rain
25°C (77°F)
18 mm (0.7 in)
Heavy rain
25°C (77°F)
13 mm (0.5 in)
Heavy rain
24°C (75°F)
6.2 mm (0.2 in)
Hourly ›
Tuesday
1 Sep
Heavy rain
24°C (75°F)
7.8 mm (0.3 in)
Rain
25°C (77°F)
4.2 mm (0.2 in)
Heavy rain
29°C (84°F)
16 mm (0.6 in)
Rain
24°C (75°F)
1.6 mm (0.1 in)
Hourly ›
Wednesday
2 Sep
Rain
25°C (77°F)
2.7 mm (0.1 in)
Rain
27°C (81°F)
1.2 mm (0.05 in)
Heavy rain showers
28°C (82°F)
11 mm (0.4 in)
Rain
25°C (77°F)
2.1 mm (0.1 in)
Hourly ›
Thursday
3 Sep
Rain showers
25°C (77°F)
1.4 mm (0.1 in)
Heavy rain showers
27°C (81°F)
5 mm (0.2 in)
Heavy rain
27°C (81°F)
7.8 mm (0.3 in)
Light rain
25°C (77°F)
0.6 mm (0.02 in)
Hourly ›
Friday
4 Sep
Rain showers
26°C (79°F)
2.5 mm (0.1 in)
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in San Juan this week?

Today's weather - Wednesday 26 Aug

For Wednesday the predicted weather in San Juan is rain during the morning and afternoon. The maximum temperature is a warm 28°C (82°F), while the minimum temperature is a warm 26°C (79°F).

Tomorrow's weather - Thursday 27 Aug

Tomorrow's weather in San Juan will be heavy rain throughout the day. The maximum predicted temperature is a warm 27°C (81°F), while the minimum temperature is a warm 25°C (77°F).

10-Day Weather Forecast

In the coming 10 days, the weather in San Juan will vary between 25°C (77°F) and 29°C (84°F). Daytime highs during this period will average around 27°C (81°F), with nighttime lows around 25°C (77°F). Compared to normal August conditions, this is a bit cooler than usual. Precipitation levels will be more than usual (versus normal August rainfall), with some rainy days. Precipitation is likely on about 8 days (Wed, Thu, Fri, Sat, Sun, Mon, Tue, Wed).

Weather Forecast FAQ for San Juan

When will be the warmest day next week?

The warmest day is expected to be Tuesday with a high of 29°C (84°F).

When will be the coldest day?

The coldest day is forecasted for Monday with a low of 24°C (75°F).

Will it rain next week in San Juan?

Yes, rain is expected on 8 days , specifically on Wed, Thu, Fri, Sat, Sun, Mon, Tue, Wed.

How much rainfall is expected next week?

A total of 302 mm (12 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 24°C (75°F) to 29°C (84°F).

More about San Juan

Explore the full San Juan climate overview with monthly averages, or check rainfall data and temperature by month.

San Juan weather by month

Browse monthly averages for San Juan: climate by month with temperature, rainfall and sunshine.

Travel inspiration

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