Posted by: senorwx | February 1, 2016

Cold? Not. So. Much.

January, February and March are the coldest months of the year in San Pancho. But before I scare away visitors planning to travel to the Riviera Nayarit, keep in mind I’m talking about a low temperature around 60 degrees F. Not very cold by most standards! Well, not cold by my native New England standards.

If you’re looking for cold weather in Mexico, there’s some to go around as much of the country has experienced some cold temperatures, rain and strong winds according to this article titled The Polar air mass over much of Mexico in the Sol Mexico News.

Here in San Francisco on the Riviera Nayarit, our January low was 58. 7 F compared to last year’s 59.1 F. The expected low for February will be about the same, a couple of degrees either side of 60 F.

Daytime temperatures in San Pancho in January were moderated by several cloudy days. We reached 86.7 F on January 2nd with the UV index riding high many days in the low 90’s, less than last year’s high heat index of 97.3 F.

Rainfall. None, excepting a very brief light rain mid-month. But it’s not unusual to have some rain in January. In February we can expect either none or three inches based on past records. In 2010, 2012, and 2015 we had 3+ inches of rain. The other years since 2008, only a trace of rain. Your guess is as good as mine.

Several days of massive surf was the environmental highlight of the month. The Pacific was churning out 12 foot waves that came crashing in, with the resulting strong undertow that was a challenge for even the best swimmers. The beach landscape changed daily due to the surf. Quite an impressive site at sunset.

If you’re planning to visit Mexico this season, head for San Pancho. You’ll find us just north of Puerto Vallarta. You’ll love our town and the weather can’t be beat!

Posted by: senorwx | January 1, 2016

A Record Breaking Month and Year

In the world of NFL football, I enjoy it when Tom Brady breaks records. When it comes to the weather, breaking old records is a mixed bag, especially when it comes to rain and hot weather. Let’s take a look at December 2015 and the full year to inspect a few new records.

Rain amounts grab our attention the most, so let’s start there. December rain totaled 3.62 inches, an all time record for the San Pancho Weather Station database (2008 thru today is the basis for any ‘all-time’ reference). The record broken? In 2009 we had 3.09 inches, well above the average of about an inch for all Decembers.

Total rain for 2015 was 48.87 inches, second only to the all-time record  of 2010 which was 55.70, well above the average of for all the years on file.

They say a picture is worth a thousand words, so to spare you the reading time, here’s the annual rainfall history in San Pancho.



The other weather observation that caught our collective attention last month and last year was the intensity and length of the hot weather. And for good reason. December was the warmest December on record: 88.4 F, besting 2013 when it was 87.8 F.

The average high temperature for the entire year was 90.45 F., a new record and a full degree warmer than 2014’s average high.

December low temperature: 62.6 F., not even close to the December 2010 low record when it was 57.0 F. That’s right in line with those warm temperatures for the whole year. The overnight low temperature average for 2015 was: 67.32 F, compared to the 62.48 F low average of 2009.

When it comes to comfort the heat index is the best indicator we have, it being a combination of temperature and humidity. The average of the high heat index for 2015 was a record 83.93 F. That beat the average high of 82.49 F. of 2014.

The December high heat index was 99.9 F. another record, besting the previous record of 96.3 F. in December 2013.

Most remarkable though is the annual high heat index average for the entire year. In other words, take the high heat index for every day last year, divide that number by the days in the year and the result is 105.84 F., a new record and higher than last year’s 103.23 F. So now I give you another New Year’s gift graphic to put this number in perspective, along with my best wishes for and healthy and joy-full 2016!




Posted by: senorwx | December 12, 2015

About December Rain in San Pancho

An inch of rain has fallen on our Pacific Coast village in the past 24 hours. Unusual for December, but not for the record books.

The last month of the year usually brings only a trace of precipitation, with two noteable exceptions: 2009 and 2013. Those two Decembers we had 3 inches of rain! So we are far from setting any rain records for the twelfth month.

There is a record we’ve set for the year so far. It is the total rainfall: more than 46 inches. That is second only to the rain-soaked 2010 when we were just shy of 56 inches. Yes, the famous September floods year. We’re not likely to best that this year.

It’s worth noting that we are also experiencing the warmest December on record here in San Francisco, Nayarit. On average, several degrees warmer, even though those daytime highs in the mid-80s feel downright comfortable after our long, hot summer!

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