Climate and average weather in Rivera

Rivera gets about 1483 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 3.1 months, from around Dec 13 to Mar 15, peaking in February at about 39% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 3.

October is the wettest month by volume, with 161 mm over about 11 wet days; August is the driest, with 105 mm.

Over a full year, Rivera collects about 1483 mm of rain across 111 wet days — roughly 124 mm in an average month.

It doesn’t fall evenly. October is the wettest month with 161 mm, while August is the driest at just 105 mm. The three wettest months alone bring about 30% of the year’s total.

In Rivera, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around November 2 and lasts for 5.5 months, ending around April 17. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 58% of the time on average.

The cloudier part of the year begins around August 28 and lasts for 2.2 months, ending around November 1. The cloudiest month is June, when it is overcast or mostly cloudy 56% of the time.

Rivera averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 9 and 14 days.

The sunnier stretch runs 3.5 months, from around Nov 1 to Feb 15. The sunniest month is November, with roughly 13 sunny days (mixed).

The greyest month is May, down near 10 sunny days — about 26% fewer than the November peak.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Rivera, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.9 months, from around November 19 to April 17. The muggiest month is February, when the air feels humid, muggy or worse about 76% of the time.

The most comfortable stretch runs from around April 18 to November 18, and August is the most comfortable month — the air is dry or comfortable 89% of the time.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Rivera is steady company: average speeds sit near 13 km/h — light breeze — in every month of the year, with no meaningful windy or calm season.