December
December · January · November
Mexico · 1991–2020
December leads for comfortable weather in La Fortuna: typically 29.5°C by day, 16.3°C at night, with 2 mm of rain. Based on measured 1991–2020 NOAA station history.
December · January · November
November · December · January
December · November · January
The weakest month is June, scoring 32 against December’s 80 — 228 mm of rain falls, and days average 32.1°C, 8° above the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 30.3°C | 16.4°C | 1 mm | 0.3 | 11 h 16 | 77 | Good coverage |
| February | 32.4°C | 16.8°C | 1 mm | 0.3 | 11 h 36 | 69 | Good coverage |
| March | 35.2°C | 17.9°C | 3 mm | 0.5 | 12 h 00 | 58 | Good coverage |
| April | 36.7°C | 18.7°C | 16 mm | 1.2 | 12 h 29 | 52 | Good coverage |
| May | 34.7°C | 19°C | 100 mm | 5.6 | 12 h 52 | 46 | Good coverage |
| June | 32.1°C | 19.3°C | 228 mm | 10.2 | 13 h 05 | 32 | Good coverage |
| July | 32.4°C | 19.3°C | 108 mm | 5.7 | 13 h 00 | 52 | Good coverage |
| August | 32.2°C | 19.1°C | 154 mm | 7.7 | 12 h 40 | 44 | Good coverage |
| September | 30.7°C | 18.8°C | 212 mm | 10.6 | 12 h 12 | 40 | Good coverage |
| October | 29.8°C | 18.4°C | 114 mm | 6.4 | 11 h 45 | 61 | Good coverage |
| November | 29.7°C | 17.2°C | 13 mm | 1 | 11 h 21 | 77 | Good coverage |
| December | 29.5°C | 16.3°C | 2 mm | 0.2 | 11 h 10 | 80 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 38.9°C6 Jan 2005 | 5.0°C11 Jan 2010 | 23 mm17 Jan 1980 | 23 mm1980 · driest 0 mm in 2000 | 39 |
| February | 40.0°C28 Feb 2007 | 6.7°C13 Feb 1974 | 43 mm25 Feb 1983 | 56 mm1983 · driest 0 mm in 1975 | 38 |
| March | 41.7°C22 Mar 1973 | 5.0°C4 Mar 2013 | 42 mm4 Mar 1975 | 42 mm1975 · driest 0 mm in 1995 | 39 |
| April | 42.2°C7 Apr 2004 | 10.0°C8 Apr 2009 | 56 mm28 Apr 1982 | 114 mm1982 · driest 0 mm in 1983 | 37 |
| May | 41.7°C11 May 2005 | 12.2°C24 May 1990 | 80 mm16 May 2012 | 226 mm1982 · driest 0 mm in 1989 | 37 |
| June | 40.0°C4 Jun 2010 | 13.3°C3 Jun 1989 | 292 mm1 Jun 2008 | 596 mm1981 · driest 53 mm in 1994 | 38 |
| July | 40.0°C22 Jul 1992 | 13.9°C11 Jul 2008 | 85 mm27 Jul 2011 | 360 mm2011 · driest 0 mm in 1992 | 39 |
| August | 40.0°C18 Aug 1992 | 10.0°C23 Aug 2011 | 98 mm20 Aug 1984 | 427 mm1995 · driest 0 mm in 1991 | 37 |
| September | 40.0°C21 Sep 1992 | 10.6°C28 Sep 1975 | 125 mm10 Sep 1987 | 412 mm1984 · driest 38 mm in 1972 | 39 |
| October | 39.4°C23 Oct 2004 | 8.9°C8 Oct 2010 | 100 mm27 Oct 2006 | 331 mm2007 · driest 0 mm in 2010 | 37 |
| November | 40.0°C29 Nov 2004 | 5.6°C4 Nov 2010 | 80 mm5 Nov 1992 | 150 mm1992 · driest 0 mm in 1987 | 39 |
| December | 40.0°C9 Dec 2004 | 5.0°C19 Dec 1980 | 25 mm15 Dec 1972 | 38 mm2009 · driest 0 mm in 2002 | 40 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 29 | 19 | 0 |
| February | 28 | 22 | 0 |
| March | 31 | 29 | <1 |
| April | 30 | 30 | <1 |
| May | 31 | 28 | 3 |
| June | 29 | 23 | 6 |
| July | 31 | 26 | 3 |
| August | 31 | 25 | 5 |
| September | 29 | 18 | 7 |
| October | 29 | 15 | 4 |
| November | 29 | 15 | <1 |
| December | 27 | 15 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 99% | <1% | <1% | 0% | 27.1–33.3°C |
| February | 99% | 1% | <1% | <1% | 31.1–35.6°C |
| March | 98% | 2% | <1% | <1% | 33.1–37.3°C |
| April | 95% | 6% | 3% | 4% | 34.4–38.0°C |
| May | 83% | 17% | 10% | 20% | 32.8–36.9°C |
| June | 64% | 36% | 21% | 45% | 29.9–34.5°C |
| July | 81% | 19% | 10% | 19% | 30.2–34.4°C |
| August | 75% | 25% | 15% | 32% | 29.8–34.8°C |
| September | 61% | 39% | 22% | 50% | 26.7–33.8°C |
| October | 79% | 21% | 11% | 20% | 27.4–32.7°C |
| November | 96% | 4% | 1% | 1% | 28.0–32.7°C |
| December | 99% | 1% | <1% | <1% | 26.2–32.4°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page