Detailed weather trigger profiles for fibromyalgia, rheumatoid arthritis, migraine, chronic back pain, osteoarthritis, and neuropathic pain — based on peer-reviewed research.
Weather sensitivity is not uniform across chronic pain conditions. Each condition has a distinct underlying pathophysiology that interacts differently with atmospheric variables. Understanding your condition's specific profile helps you prioritise which MPC4 alerts to watch most closely.
Among the most weather-sensitive conditions due to central sensitisation and widespread small-fibre neuropathy. Multiple environmental signals converge on an already amplified pain system.
↓ Barometric pressureCold temperatureHigh humidityGeomagnetic stormsLow melatonin daysInflammation-driven, so weather effects are mediated through vascular and immune mechanisms. Cold + humid combination most consistently reported. Individual variability is high.
Cold temperatureHigh humidity↓ Barometric pressureRapid temperature changeMechanical pathway dominant. Pressure changes affect joint cavity expansion; cold reduces synovial fluid quality. Highly prevalent weather sensitivity (~83% in European cohorts).
↓ Barometric pressureCold temperatureHigh humidityPressure direction changeWeather is among the top 5 reported migraine triggers. Pressure changes affect sinus and intracranial pressure gradients. Barometric drops are the strongest predictor.
↓ Barometric pressureChinook / Foehn windsHigh humidityExtreme heatBright sunlightCombined weather effects more important than single variables. Temperature-humidity anomalies at ground level most predictive. Intervertebral disc hydration reduced by sustained cold.
Cold temperatureHigh humidity↓ Barometric pressureWeather variabilityCold allodynia (pain from non-painful cold) is a hallmark feature. Humidity worsens diabetic neuropathy independently. Autonomic dysfunction amplifies all weather-pain pathways.
Cold temperatureHigh humidityRapid temperature dropGeomagnetic activityFibromyalgia (FM) occupies a unique position in weather-pain research because it involves dysfunction at the central nervous system level rather than a specific peripheral tissue. The widespread pain amplification, fatigue, cognitive symptoms, and sleep disturbance characteristic of FM are all influenced by the same environmental variables that disrupt the melatonin-serotonin axis, circadian rhythms, and autonomic tone.
A 2019 PLOS ONE study by Fagerlund et al. — one of the most methodologically rigorous studies of its kind, using ecological momentary assessment across three years — confirmed that lower barometric pressure independently predicted higher pain scores in FM patients, with temperature and humidity acting as significant co-variables [1]. Smedslund et al. (2014) also confirmed a significant inverse relationship between pain and barometric pressure in women with FM, with the relationship strengthened in patients with higher anxiety sensitivity [2].
Rheumatoid arthritis (RA) is driven by autoimmune inflammation in the synovium. Weather affects RA through two main routes: vascular (cold causes vasoconstriction, reducing clearance of inflammatory mediators) and mechanical (pressure changes affect joint capsule tension). A 2025 systematic review and meta-analysis by Hu et al. in Autoimmunity Reviews — analysing data from multiple countries and climates — confirmed that temperature and barometric pressure are the weather variables with strongest evidence for influencing RA symptoms [5].
The Smedslund & Hagen (2011) review noted that while group-level effects were modest, a consistent subgroup of RA patients (<25%) showed strong individual weather sensitivity, and crucially, that this subset could be identified prospectively through personal tracking [4]. This is the scientific rationale for MPC4's personalised correlation feature.
Weather is among the most frequently cited migraine triggers, with studies showing 50–70% of migraineurs identify weather as a contributing factor [6]. The mechanisms are distinct from musculoskeletal conditions: falling barometric pressure changes the pressure gradient across the sinus walls and the dura mater (the tough outer brain covering), activating trigeminal nerve endings that are already sensitised in migraine-prone individuals.
A 2019 study by Li et al. in Environment International found that low temperature and lower pressure were both associated with increased migraine onset risk in a large US cohort [6]. A 2025 meta-analysis by S. Li et al. in the Journal of Neurology confirmed that weather conditions — particularly pressure — are statistically significant migraine triggers, though effect sizes vary by individual [9].
Hot, dry Chinook (Foehn) winds — which produce rapid warming and very low humidity — are a notable exception to the cold-pain pattern, and are specifically associated with migraine clusters in certain geographic regions. MPC4 includes wind type monitoring where regional forecast data permits.
The 2014 case-crossover study by Steffens et al. in Arthritis Care & Research found that temperature and humidity together were more predictive of acute back pain episodes than either variable alone [7]. The intervertebral disc, which derives its hydration and height from osmotic processes, is vulnerable to sustained cold and dehydration. Reduced disc height under cold conditions increases mechanical load on facet joints and surrounding muscle.
For osteoarthritis, the EPOSA study (Timmermans et al., 2014) — spanning six European countries — found that 67% of OA patients considered themselves weather-sensitive, and that self-reported sensitivity correlated with objective pain measures and functional limitation [8].
Cold allodynia is a recognised symptom in peripheral neuropathy, CRPS, and post-herpetic neuralgia. At the cellular level, cold activates TRPM8 ion channels on nociceptive nerve fibres, and in sensitised nerves these channels have a lower activation threshold — meaning temperatures that would normally be mildly cool produce genuine pain signals. High humidity independently affects skin electrical resistance and may alter the sensory threshold for already hypersensitive nerve endings [3]. The 2025 paper by Jevotovsky et al. in Current Pain and Headache Reports provides a detailed review of temperature mechanisms across neuropathic, inflammatory, and musculoskeletal pain syndromes [10].
Use this table to identify which MPC4 alert streams are most relevant to your condition(s). If you have multiple conditions, enable all applicable streams.
| Condition | Barometric | Temperature | Humidity | Geomagnetic | Wind |
|---|---|---|---|---|---|
| Fibromyalgia | ★★★ | ★★★ | ★★☆ | ★★★ | ★☆☆ |
| Rheumatoid Arthritis | ★★☆ | ★★★ | ★★★ | ★☆☆ | ★☆☆ |
| Osteoarthritis | ★★★ | ★★☆ | ★★☆ | ★☆☆ | ★☆☆ |
| Migraine | ★★★ | ★★☆ | ★★☆ | ★☆☆ | ★★☆ |
| Chronic Back Pain | ★★☆ | ★★☆ | ★★☆ | ★☆☆ | ★☆☆ |
| Neuropathic Pain | ★☆☆ | ★★★ | ★★☆ | ★★☆ | ★☆☆ |
★★★ Strong evidence | ★★☆ Moderate evidence | ★☆☆ Emerging / limited evidence