| October 11, 2025 | No.198 |
September 2025
(Back Issues Here)
Just returned from a 24 day trip to Florence, Italy so the report is a little late but here is September's weather update.
We had 14.16 inches of rain at the Palmira Arriba Station during the month of September 2025.
Rainfall for September 2025 |
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Area |
Contributors |
September 2025 |
Total 2025 |
| El Salto Arriba | Beth Corwin | 10.77 | 69.16 |
| Bajo Lino | Rodrigo Marciacq | 8.76 | n/a |
| Los Cabazos | Don Hughes | 11.71 | 65.85 |
Jaramillo Arriba |
Steve Sarner |
21.60 | 113.66 |
| Jaramillo Arriba | Mark Heyer | 29.24 | n/a |
| Jaramilla Alto | Steve White | 20.28 | 115.53 |
| Jaramillo Central | Colleen Anderson | 12.80 | 63.40 |
Jaramillo Abajo |
John McGann |
20.55 | 112.14 |
| Palo Alto | Nancy Pettersen | 8.49 | 80.69 |
| Valle Escondido | Gisela Remsen | 12.23 | 66.54 |
| Brisas Boquetenas | Dennis Decorte | 48.48 | n/a |
| Brisas Boquetenas | Richard Sturz | 58.65 | n/a |
| El Encanto (Volcancito) | Brian Baldwin | 13.44 | 78.28 |
Cerro Verde (Volcancito) |
Charlotte Lintz |
9.09 | 60.82 |
| Caldera | Chris McCall | 27.95 | 129.60 |
| Lucero | Mike Joy | 29.34 | 159.46 |
| Palmira Abajo | Dave Nichols | 24.82 | 122.57 |
Palmira Arriba |
Lloyd Cripe |
14.16 | 95.18 |
| N/A = Not
Available Red = Highest rainfalls Green = Lowest rainfall |
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Checking the past data from the Palmira Arriba Station over a span of 19 years, the average rainfall for the months of September is 21.02 inches. The range is a low of 9.30 inches to a high of 46.00 inches. This month's 14.16 inches is -0.75 standard deviations below the mean compared to the means for September. So we had less rain in September than we normally expect but still within a normal statistical range.
Palmira Arriba Station Average September Rainfalls over 19 Years
At the Palmira Arriba Station we had 23 days with measureable precipitation and 7 days without.
The table above with the rainfall in various parts of the district of Boquete for September shows levels from 8 to 58+ inches. You can see there is a lot of variation. Check it out to see who gets the prizes for most and least.
The average winds at the Palmira Arriba station were 1.07 mph and generally from the NE. Our maximum wind gust was 19.3 mph. This was the lowest monthly average winds for the year as expected in the rainy season. Average temperature was 67.45 degrees F. The Highest temperature was 83.3 degrees F. Lowest temperature was 59.4 degrees F. You can check all of our (Palmira Station) previous data for the months of August over the years at this link.
The latest ENSO Cycle Report is saying that "ENSO-neutral is present. Equatorial sea surface temperatures (SSTs) are near-to-below average across most of the Pacific Ocean. A transition from ENSO-neutral to La Niña is likely in the next couple of months, with a 71% chance of La Niña during October - December 2025. Thereafter, La Niña is favored but chances decrease to 54% in December 2025 - February 2026.."
Here is a link to a source to better understand El Niño in case you need some help interpreting what this all means. Give this a read and you will learn a lot about this important weather phenomenon that affects global weather. It has more effect upon the Northern Latitudes than it has upon us here in the tropics.
The IRI (International Research Institute for Climate and Society) (select South America from the Region menu) is predicting a dry season with a 45% probability of Above Normal rain for parts of Panama during the months of October - November - December of 2025 (mostly Light Green).
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IMHPA (Instituto de Meteorología e Hidrología de Panamá) documents section predicts that during October "...Rainfall values are expected to be above normal in the provinces of Chiriquí, the Ngäbe Buglé region, central and southern Veraguas, Los Santos, Herrera, Coclé, and Western Panama. For the rest of the country, rainfall is expected to be within normal monthly values." You can read their entire report and check out the details in the "documents" section at this link.
We just returned from a 24 day trip and adventure in Florence, Italy. We had good weather with generally clear skies and only one day with some light precipitation. We had a good time and of course didn't miss the heavy rains and flash flooding earlier this month (October). At the end of this month I will try to get the report out on time and will make comments about the October floods and the causes.
Like I have said many times over the years writing this report, October is often the rainiest month of the Rainy Season. It certainly started that way this month. By the end of the month we will know if October keeps its promise and doesn't disappoint.
Just in case October comes through, keep those umbrellas handy, well oiled and prepared for heavy action.
Lloyd Cripe